Comparison of e-mail clients

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The following tables compare general and technical information between a number of e-mail client programs. Please see the individual products articles for further information. This article is not all-inclusive or necessarily up-to-date.

General

Basic general information about the clients: creator/company, license/price etc. Clients listed on a light purple background are no longer in active development.

Client Creator Operating system Cost Software license User Interface
Alpine University of Washington Cross-platform Free Apache License CLI
Balsa gnome.org Linux Free GNU GPL GUI
Becky! Internet Mail Rimarts Windows Non-freeUS$40 proprietary software GUI
BlitzMail Dartmouth College Free BSD GUI
Citadel citadel.org Unix-like Free GNU GPL Web
Claws Mail the Claws Mail team Cross-platform Free GNU GPL GUI
Cone Courier Mail Server developers Unix-like Free GNU GPL CLI
Template:Rh2 | Courier (formerly Calypso) Micro Computer Systems, Inc., continued by Rose City Software Windows Free (as of version 3.5) proprietary software GUI
eM Client E&S Software Windows Free proprietary software GUI
Elm Dave D. Taylor, Sydney Weinstein, Bill Pemberton, Michael Elkins, Kari Hurtta Unix-like Free Elm Mail System GPL CLI
Template:Rh2 | Eudora Qualcomm Windows, Mac OS X Free Future release, Penelope, will be Free/Open Source based on Mozilla Thunderbird GUI
Template:Rh2 | Eureka Email Sean O'Connor Windows Shareware (no time limit), US$20 full version proprietary software GUI
FirstClass Open Text Free proprietary software GUI
GNUMail Ludovic Marcotte and others Free GNU GPL GUI
Gnus Gnus team Cross-platform Free GNU GPL CLI
GroupWise Novell Cross-platform Included with GroupWise mailbox license proprietary software GUI
i.Scribe / InScribe Memecode Windows, Mac OS X, Linux Freeware (i.Scribe), US$20 (InScribe) proprietary software GUI
IBM Lotus Notes Lotus Software / IBM Windows, Mac OS X, Linux Non-freeUS$107, includes 1 yr phone support proprietary software GUI
KMail The KMail Team Cross-platform Free, part of KDE GNU GPL GUI
Mail Apple Inc. Mac OS X Part of Mac OS X proprietary software GUI
Mailsmith Stickshift Software, LLC Mac OS X Free proprietary software GUI
Microsoft Entourage Microsoft Mac OS X Non-freePart of Microsoft Office for Mac proprietary software GUI
Microsoft Office Outlook Microsoft Windows Non-freePart of Microsoft Office, US$109 stand-alone proprietary software GUI
Template:Rh2 | Mozilla Mail & Newsgroups Mozilla Foundation Free, part of Mozilla Application Suite MPL, MPL/GNU GPL/GNU LGPL tri-license GUI
Mozilla Thunderbird Mozilla Foundation Cross-platform Free MPL, MPL/GNU GPL/GNU LGPL tri-license GUI
Template:Rh2 | Mulberry Cyrus Daboo (previously Cyrusoft International, Inc./ISAMET Cross-platform Free (as of version 4.0.5) Apache License GUI
Mutt Michael Elkins Cross-platform Free GNU GPL CLI
Template:Rh2 | Netscape Messenger Netscape Communications Free ? GUI
Template:Rh2 | Netscape Messenger 9 Netscape Communications Free MPL, MPL/GNU GPL/GNU LGPL tri-license GUI
nmh / MH RAND Corporation Unix-like Free BSD CLI
Novell Evolution Ximian Cross-platform Free GNU GPL GUI
Opera Mail Opera Software Cross-platform Free, Part of Opera proprietary software GUI
Template:Rh2 | Outlook Express Microsoft Windows Free proprietary software GUI
Pegasus Mail David Harris Windows Donationware proprietary software GUI
Template:Rh2 | Pine University of Washington Cross-platform Free Pine License CLI
Pocomail Poco Systems Windows Non-freeUS$40 Proprietary Software GUI
RoundCube The RoundCube Team Cross-platform Free GNU GPL Web
SeaMonkey Mail & Newsgroups SeaMonkey Council Cross-platform Free, part of SeaMonkey MPL, MPL/GNU GPL/GNU LGPL tri-license GUI
Sylpheed Hiroyuki Yamamoto Cross-platform Free GNU GPL/GNU LGPL GUI
Spicebird Synovel Windows, Linux, BSD Free MPL, MPL/GNU GPL/GNU LGPL tri-license GUI
SquirrelMail The SquirrelMail Project Team Cross-platform Free GNU GPL v2 Web
The Bat! RitLabs Windows Non-freeUS$45 proprietary software GUI
Template:Rh2 | Turnpike Thus PLC (Demon Internet) Windows Free for Demon customers, GB£199 inc. VAT otherwise proprietary software GUI
Windows Live Mail Microsoft Windows Free proprietary software GUI
Template:Rh2 | Windows Mail Microsoft Windows Part of Windows Vista proprietary software GUI
Template:Rh2 | Yahoo Mail Yahoo! Yahoo! Free Web-based GUI
YAM YAM Open Source Team and contributing authors AmigaOS Free GNU GPL GUI
Zimbra Zimbra Cross-platform Free MPL on server and ZPL (attribution clause) on client Web
Client Creator Operating System Cost Software license User Interface

Release history

A brief overview of the release history.

Client First public release First stable release Latest stable release
Date Version Date Version
Alpine November 2006 0.8 December 2007 1.00 Template:Latest stable software release/Alpine
Becky! Internet Mail ? ? ? ? Template:Latest stable software release/Becky!
Citadel 1987 ? 1988 1.00 7.50

 (April 14, 2009; 15 year(s) ago)

Claws Mail May 2001 0.4.67 January 2005 1.0.0 Template:Latest stable software release/Claws Mail
Cone May 2003 0.50 May 2003 0.50 Template:Latest stable software release/Cone
Template:Rh2 | Courier ? ? ? ? Template:Latest stable software release/Courier
Elm ? ? ? ? Template:Latest stable software release/Elm
Template:Rh2 | Eudora 1988[1] ? 1988[1] ? Template:Latest stable software release/Eudora
Template:Rh2 | Eureka Email November 2002 1.0 November 2002 1.0 Template:Latest stable software release/Eureka Email
Gnus 1987[2] ? February 1, 1988[2] 2.0 Template:Latest stable software release/Gnus
GroupWise ? ? 1986 1.0 Template:Latest stable software release/GroupWise
i.Scribe / InScribe 1999 1.00 ? ? Template:Latest stable software release/Scribe Mail
IBM Lotus Notes 1989 1.0 1989 1.0 Template:Latest stable software release/Lotus Notes
KMail October 1998 Alpha February 1999 1.0.17 Template:Latest stable software release/Kontact
Mail September 13, 2000 Public Beta March 24, 2001 1.0 Template:Latest stable software release/Mail
Template:Rh2 | Mailsmith May 8, 1998 1.0 May 8, 1998 1.0 Template:Latest stable software release/Mailsmith
Microsoft Entourage ? ? ? ? Template:Latest stable software release/Microsoft Entourage
Microsoft Office Outlook 1997 97 1997 97 Template:Latest stable software release/Microsoft Office Outlook
Template:Rh2 | Mozilla Mail & Newsgroups December 7, 1998 "Preview" March 19, 1999 M3 discontinued
Mozilla Thunderbird July 28, 2003 0.1 December 7, 2004 1.0 Template:Latest stable software release/Mozilla Thunderbird
Template:Rh2 | Mulberry September 20, 1996 1.0 September 20, 1996 1.0 Template:Latest stable software release/Mulberry
Mutt 1995 ? ? ? Template:Latest stable software release/Mutt
Template:Rh2 | Netscape Messenger ? ? ? ? discontinued
Template:Rh2 | Netscape Messenger 9 November 15, 2007 9.0a1 discontinued discontinued discontinued
nmh / MH 1979 ? ? ? Template:Latest stable software release/MH Message Handling System
Novell Evolution 11 May 2000 0.0 3 December 2001 1.0 Template:Latest stable software release/Novell Evolution
Opera Mail September 1996 2.1b1 December 1996 2.1 Template:Latest stable software release/Opera
Template:Rh2 | Outlook Express 1996 3.0 ? ? Template:Latest stable software release/Outlook Express
Pegasus Mail 1990 ? 1990 ? 4.52

 (January 22, 2010; 14 year(s) ago)

Template:Rh2 | Pine January 15, 1992 2.00 January 15, 1992 2.00 Template:Latest stable software release/Pine
Pocomail 1999 ? ? ? Template:Latest stable software release/Pocomail
SeaMonkey Mail & Newsgroups September 15, 2005 1.0a January 30, 2006 1.0 Template:Latest stable software release/SeaMonkey
Sylpheed January 2000 0.1.0 December 2004 1.0.0 Template:Latest stable software release/Sylpheed
The Bat! March 1997 1.0 Beta March 1998 1.00 Build 1310 Template:Latest stable software release/The Bat!
Template:Rh2 | Turnpike ? 1.0 ? ? Template:Latest stable software release/Turnpike
Windows Live Mail ? ? ? ? Template:Latest stable software release/Windows Live Mail
Template:Rh2 | Windows Mail ? ? ? ? ?
YAM 1995 1.0 1995 1.0 Template:Latest stable software release/YAM - Yet Another Mailer
Zimbra November, 2005 Beta March, 2006 3.5 Template:Latest stable software release/Zimbra
Client Date Version Date Version Latest stable release
First public release First stable release

Operating system support

The operating systems on which the clients can run natively (without emulation).

Client Microsoft Windows Mac OS X Linux BSD Unix FreeDOS, DOS Other
Alpine Yes Yes Yes Yes Yes No No
Balsa No No Yes No No No No
Becky! Internet Mail Yes No No No No No No
Citadel No Yes Yes Yes Yes No No
Claws Mail Yes Yes Yes Yes Yes No No
Cone No Yes Yes Yes Yes No No
Template:Rh2 | Courier Yes No No No No No No
Template:Rh2 | eM Client Yes No No No No No No
Elm No Yes Yes Yes Yes No No
Template:Rh2 | Eudora Yes Yes No No No No No
Template:Rh2 | Eureka Email Yes No No No No No No
Gnus Yes Yes Yes Yes Yes Yes Emacs
GroupWise Yes Yes Yes Yes Yes ? ?
i.Scribe / InScribe Yes Yes Yes No No No No
IBM Lotus Notes Yes Yes Yes No No No No
KMail Yes Yes Yes Yes Yes No No
Mail No Included No No No No No
Template:Rh2 | Mailsmith No Yes No No No No No
Microsoft Entourage No Yes No No No No No
Microsoft Office Outlook Yes No No No No No No
Template:Rh2 | Mozilla Mail & Newsgroups Terminated (1.7.13) No No
Mozilla Thunderbird Yes Yes Yes Yes Yes No No
Template:Rh2 | Mulberry Yes Yes Yes Yes Yes No No
Mutt Yes Yes Yes Yes Yes Yes [3] No
Template:Rh2 | Netscape Messenger Terminated (4.80) No No
Template:Rh2 | Netscape Messenger 9 Terminated (9.0a1) No No
nmh / MH No Yes Yes Yes Yes No No
Novell Evolution Beta Yes Yes Yes Yes No No
Opera Mail Yes Yes Yes Yes Yes No No
Template:Rh2 | Outlook Express Included (up to XP) No No No No No No
Pegasus Mail Yes No No No No Yes No
Template:Rh2 | Pine Yes Yes Yes Yes Yes Template:Terminated (3.96) [4] No
Pocomail Yes No No No No No No
SeaMonkey Mail & Newsgroups Yes Yes Yes Yes Yes No No
Sylpheed Yes Yes Yes Yes Yes No No
Spicebird Yes planned Yes Yes No No No
The Bat! Yes No No No No No No
Template:Rh2 | Turnpike Yes No No No No No No
Windows Live Mail Yes No No No No No No
Template:Rh2 | Windows Mail Included (Vista) No No No No No No
YAM No No No No No No AmigaOS
Zimbra Yes Yes Yes Yes Yes No No
Client Microsoft Windows Mac OS X Linux BSD Unix FreeDOS, DOS AmigaOS MorphOS

Protocol support

What e-mail and related protocols and standards are supported by each client.

Client POP3
fetch all messages
POP3
selected by filter
POP3
selected by user
IMAP4
SMTP
NNTP
LDAP v2
LDAP v3
IMSP
ACAP
RSS 0.91 Feeds RSS 1.0 Feeds RSS 2.0 Feeds ATOM Feeds iCalendar
Alpine Yes Yes Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ?
Becky! Internet Mail Yes ? ? Yes Yes Yes Template:Refun Yes ? ? ? Yes Template:Refun Yes Template:Refun Yes Template:Refun Yes Template:Refun ?
Citadel ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Claws Mail Yes Yes Yes Yes Yes Yes Yes Yes ? ? No Yes Template:Refun Yes Template:Refun Yes Template:Refun Yes Template:Refun
Cone Yes No No Template:Refun Yes Yes Yes Yes Yes No No No No No No No
Template:Rh2 | Courier Yes Yes Yes Yes Yes No Yes Yes No No No No No No No
Template:Rh2 | eM Client Yes Yes Yes Yes Yes No No No No No Yes Yes Yes No Yes
Elm ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Eudora Yes No No Yes Yes No Yes Yes No Yes No No No No No
Template:Rh2 | Eureka Email ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Gnus Yes Yes No Yes Yes Yes Yes Template:Refun Yes Template:Refun ? ? Yes Yes Yes No ?
GroupWise Yes Yes Yes Yes Yes Yes Yes Yes ? No ? ? ? ? Yes
i.Scribe / InScribe Yes No Yes Yes Yes No Yes Template:Refun Yes Template:Refun No No No No No No No
IBM Lotus Notes Yes No No Yes Yes Yes Yes Yes No No Yes Template:Refun Yes Yes Yes Yes
KMail Yes No No Yes Yes No Template:Refun Yes ? ? ? No Template:Refun No Template:Refun No Template:Refun No Template:Refun No Template:Refun
Mail Yes No No Yes Yes No Yes ? ? ? Yes Yes Yes Yes Yes Template:Refun
Template:Rh2 | Mailsmith Yes ? Yes No Yes ? ? ? ? ? No No No No No
Microsoft Entourage Yes ? ? Yes Yes Yes No Yes ? ? ? ? ? ? Yes
Microsoft Office Outlook Yes No No Yes Yes No Yes ? ? ? Yes Template:Refun Yes Template:Refun Yes Template:Refun Yes Template:Refun Yes Template:Refun
Template:Rh2 | Mozilla Mail & Newsgroups ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Mozilla Thunderbird Yes No No Yes Yes Yes Partial ? No No Yes Yes Yes Yes Yes Template:Refun
Template:Rh2 | Mulberry Yes No No Yes Yes No Yes ? Yes Yes No No No No Yes
Mutt Yes No (possible with POP3 browser) No (possible with POP3 browser) Yes Yes No (slrn looks alike) Partial (resolve real names through NSS) ? ? ? No No No No No
Template:Rh2 | Netscape Messenger Yes ? ? Yes ? Yes ? ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger 9 Yes ? ? Yes ? Yes ? ? ? ? ? ? ? ? ?
nmh / MH ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Novell Evolution Yes No No Yes Yes Yes ? ? ? ? No No No No Yes
Opera Mail Yes No Yes Yes Yes Yes No No ? ? Yes Yes Yes Yes No
Template:Rh2 | Outlook Express Yes No No Yes Yes Yes Yes ? ? ? No No No No No
Pegasus Mail Yes Yes Yes Yes Yes Yes Template:Refun Yes ? ? ? Yes Template:Refun Yes Template:Refun Yes Template:Refun ? ?
Template:Rh2 | Pine Yes No No Yes Yes Yes Yes No No No No No No No No
Pocomail Yes Yes Yes Yes Yes No No No No No Yes Yes Yes No No
SeaMonkey Mail & Newsgroups Yes No No Yes Yes Yes Partial ? No No Yes Yes Yes Yes Yes Template:Refun
Sylpheed Yes Yes Yes Yes Yes Yes Yes No No No No No No No No
Spicebird Yes No No Yes Yes Yes Partial ? No No Yes Yes Yes Yes Yes Template:Refun
The Bat! Yes Yes Template:Refun Yes Template:Refun Yes Yes Yes Template:Refun Yes No No No Yes Template:Refun Yes Template:Refun Yes Template:Refun Yes Template:Refun No
Template:Rh2 | Turnpike Yes ? ? ? Yes Yes ? ? ? ? ? ? ? ? ?
Windows Live Mail Yes No No Yes Yes Yes Yes ? ? ? Yes Yes Yes Yes No
Template:Rh2 | Windows Mail Yes No No Yes Yes ? ? ? ? ? ? ? ? ? ?
YAM Yes Yes Yes No Yes No No No No No No No No No No
Zimbra Yes No No Yes Yes Yes Yes Yes ? ? Yes Yes Yes Yes Yes
Client POP3
fetch all messages
POP3
selected by filter
POP3
selected by user
IMAP4 SMTP NNTP LDAP v2 LDAP v3 IMSP ACAP RSS 0.91 Feeds RSS 1.0 Feeds RSS 2.0 Feeds ATOM Feeds iCalendar
  • ^  Becky! requires BkBlogReader or BkRSSviewer or B.F.R or BkRssReader plugin installed for handling RSS and ATOM.
  • ^  Becky! requires FRNews or BkNews plugin installed for handling NNTP.
  • ^  An Emacs module named EUDC extends Gnus/VM (View Mail) and BBDB to support LDAP.
  • ^  KDE supports Newsgroups (NNTP) by the use of KNode
  • ^  KDE supports feeds by the use of Akregator
  • ^  KDE supports iCal by the use of KOrganizer
  • ^  Studio Blog Reader is one RSS reader application for IBM Lotus Notes. IBM Lotus Notes version 8.x introduced a native RSS reader.
  • ^  Support of feeds is available in Microsoft Office Outlook 2007.
  • ^  Microsoft Outlook support of iCalendar varies by version.
  • ^  Selective Download filters can skip/delete messages on POP3 server based on header (sender, recipient, subject, etc) information, this doesn't require to retrieve the full message body from the server.
  • ^  Message Dispatcher allows the user to decide which messages should be retrieved, deleted or skipped based on the header information (sender, recipient, subject, etc) displayed to the user.
  • ^  iCalendar is supported with an extension.
  • ^  RSSyl plugin is required to read RSS and ATOM in Claws Mail.
  • ^  vCalendar plugin is required to handle iCalendar in Claws Mail.
  • ^  The BAT! requires MyGate plugin installed for handling NNTP.
  • ^  The BAT! requires rss2mail or rss2pop3 plugin installed for handling RSS and ATOM.
  • ^  i.Scribe / InScribe requires a plugin to handle LDAP.
  • ^  Pegasus Mail can convert Newsgroup messages and/or RSS feeds to e-mails through the use of free add-ons.
  • ^  Cone has an option to either keep all POP3 mail on the server, or download all messages from the POP3 mailbox.
  • ^  With Mail version 4, in Mac OS 10.6 Snow Leopard. In previous versions, Mail only links it with iCal.

Authentication support

Client Regular MSN (NTLM)

browser login

Compuserve

(RPA)

MD5 APOP Template:Refun CRAM-HMAC Template:Refun DIGEST-MD5 with hardware token

PKCS#11

Biometric SMTP Auth Template:Refun SSL/TLS Client Certificate
LOGIN PLAIN MD5 SHA1 RIPEMD
Alpine Yes Yes No No No Yes No No No No No Yes No
Citadel ? ? ? ? ? ? ? ? ? ? ? ? ?
Claws Mail Yes Yes ? ? Yes Yes ? ? Yes Yes Template:Refun ? Yes Yes
Cone Yes Yes No No No Yes Yes No No No No Yes Yes
Template:Rh2 | Courier Yes Yes Yes No Yes Yes Yes No Yes No No Yes Yes
eM Client Yes Yes No No Yes Yes Yes No Yes No No Yes Yes
Elm ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Eudora Yes Yes Yes Yes Yes Yes No No No No No No ?
Template:Rh2 | Eureka Email ? ? ? ? ? ? ? ? ? ? ? ? ?
Gnus Yes Yes ? ? Yes Yes Yes ? Yes ? ? Yes ?
GroupWise ? ? ? ? ? ? ? ? ? ? ? ? ?
i.Scribe / InScribe Yes Yes Yes No Yes No No No No No No Yes No
IBM Lotus Notes Yes ? Yes No No No ? ? ? Yes No Yes ?
KMail Yes Yes Yes No Yes Yes No No Yes No No Yes ?
Mail Yes Yes Yes Template:Refun No Yes Yes Template:Refun ? ? ? ? ? Yes ?
Template:Rh2 | Mailsmith ? ? ? ? ? ? ? ? ? ? ? ? ?
Microsoft Entourage Yes No Yes ? ? Yes ? ? ? Yes ? Yes Yes
Microsoft Office Outlook Yes No Yes No No No No No No No No Yes No
Template:Rh2 | Mozilla Mail & Newsgroups Yes ? ? Yes ? Yes ? ? ? ? ? ? ?
Mozilla Thunderbird Yes Yes Yes No Yes Yes No No No [1] Yes No Yes Yes
Template:Rh2 | Mulberry Yes Yes Yes No No Yes No No Yes No No Yes Yes
Mutt Yes Yes Yes ? Yes Yes No No Yes No No 1.5.15 Yes
Template:Rh2 | Netscape Messenger ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger 9 ? ? ? ? ? ? ? ? ? ? ? ? ?
nmh / MH ? ? ? ? ? ? ? ? ? ? ? ? ?
Novell Evolution Yes Yes Yes No Yes Yes No No Yes No No Yes No
Opera Mail Yes Yes No No Yes Yes No No No No No Yes Yes
Template:Rh2 | Outlook Express Yes No Yes No No No No No No No No Yes No
Pegasus Mail Yes ? No No Yes No No No No No No Yes Yes
Template:Rh2 | Pine Yes Yes No No No Yes No No No No No Yes No
Pocomail ? ? ? ? ? ? ? ? ? ? ? ? ?
SeaMonkey Mail & Newsgroups Yes Yes Yes No Yes Yes No No No [2] Yes No Yes Yes
Sylpheed Yes Yes No No Yes Yes No No No No No Yes No
The Bat! Yes Yes Yes Yes Yes Yes No No No Yes Yes Yes No
Template:Rh2 | Turnpike ? ? ? ? ? ? ? ? ? ? ? ? ?
Windows Live Mail Yes No Yes No Yes No No No No No No No No
Template:Rh2 | Windows Mail ? ? ? ? ? ? ? ? ? ? ? ? ?
YAM Yes Yes ? ? Yes ? ? ? ? ? ? ? AmiSSL
Zimbra Yes Yes ? ? Yes Yes ? ? ? Yes ? ? ?
Client Regular MSN (NTLM)

browser login

Compuserve

(RPA)

MD5 APOP Template:Refun CRAM-HMAC Template:Refun DIGEST-MD5 with hardware token

PKCS#11

Biometric SMTP Auth Template:Refun SSL/TLS Client Certificate
LOGIN PLAIN MD5 SHA1 RIPEMD

SSL and TLS Support

Client Secure POP3 Secure IMAP4 Secure SMTP Secure NNTP Secure LDAP OCSP Template:Refun CRL Template:Refun
SSL TLS Template:Refun SSL TLS Template:Refun SSL TLS Template:Refun SSL TLS SSL TLS
Alpine Yes Yes Yes Yes Yes Yes Yes Yes ? Yes ? ?
Becky! Internet Mail Yes Yes Yes Yes Yes Yes ? ? ? ? ? ?
Citadel ? ? ? ? ? ? ? ? ? ? ? ?
Claws Mail Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes ? ?
Cone Yes Yes Yes Yes Yes Yes No No Yes Yes No No
Template:Rh2 | Courier No No No No No No No No No No No No
Template:Rh2 | eM Client Yes Yes Yes Yes Yes Yes No No No No No No
Elm ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Eudora Yes Yes Yes Yes Yes Yes No No Yes Yes ? ?
Template:Rh2 | Eureka Email ? ? ? ? ? ? ? ? ? ? ? ?
Gnus ? ? Yes Yes ? ? ? ? ? ? ? ?
GroupWise ? ? ? ? ? ? ? ? ? ? ? ?
i.Scribe / InScribe Yes Yes Yes No Yes Yes No No No No No No
IBM Lotus Notes Yes ? Yes ? Yes Yes Yes ? Yes ? ? Yes
KMail Yes Yes Yes Yes Yes Yes No No ? ? ? ?
Mail Yes ? Yes Yes Yes ? No No Yes ? ? ?
Template:Rh2 | Mailsmith ? ? ? ? ? ? ? ? ? ? ? ?
Microsoft Entourage Yes ? Yes ? Yes ? Yes ? Yes ? ? ?
Microsoft Office Outlook Yes No Yes Yes Yes Yes ? ? ? ? ? ?
Template:Rh2 | Mozilla Mail & Newsgroups ? ? ? ? ? ? ? ? ? ? ? ?
Mozilla Thunderbird Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Template:Rh2 | Mulberry Yes Yes Yes Yes Yes Yes No No Yes Yes ? ?
Mutt Yes Yes Yes Yes 1.5.15 1.5.15 ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger 9 ? ? ? ? ? ? ? ? ? ? ? ?
nmh / MH ? ? ? ? ? ? ? ? ? ? ? ?
Novell Evolution Yes Yes Yes Yes Yes Yes No No ? ? ? ?
Opera Mail Yes Partial Template:Refun Yes Partial Template:Refun Yes Partial Template:Refun Yes No No No ? ?
Template:Rh2 | Outlook Express Yes No Yes No Yes No ? ? ? ? ? ?
Pegasus Mail Yes Yes Yes Yes Yes Yes ? ? Yes ? ? ?
Template:Rh2 | Pine Yes Yes Yes Yes Yes Yes Yes Yes No No ? ?
Pocomail ? ? ? ? ? ? ? ? ? ? ? ?
SeaMonkey Mail & Newsgroups Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Sylpheed Yes Yes Yes Yes Yes Yes Yes Yes ? ? ? ?
Spicebird Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
The Bat! Yes Yes Yes Yes Yes Yes No No No No Yes Template:Refun Yes Template:Refun
Template:Rh2 | Turnpike ? ? ? ? ? ? ? ? ? ? ? ?
Windows Live Mail Yes No Yes No Yes No ? ? ? ? ? ?
Template:Rh2 | Windows Mail Yes ? Yes ? Yes ? ? ? ? ? ? ?
YAM ? ? ? ? ? ? ? ? ? ? ? ?
Zimbra Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes ? ?
Client Secure POP3 Secure IMAP4 Secure SMTP Secure NNTP Secure LDAP OCSP Template:Refun CRL Template:Refun
SSL TLS Template:Refun SSL TLS Template:Refun SSL TLS Template:Refun SSL TLS SSL TLS
  • ^  Description: RFC 2487
  • ^  Description: RFC 2595
  • ^  Opera Mail does not support STARTTLS command on special ports, like 995 for pop3 connection
  • ^  Online Certificate Status Protocol - Description: RFC 2560
  • ^  Certificate Revocation List - Description: RFC 3280
  • ^  Since version 4.2, The Bat! supports two modes of X.509 certificate handling: Internal Implementation and via Microsoft Crypto API. CRLs and OCSP are only supported in the latter mode during TLS connections.

Features

Information on what features each of the clients support.

Note that for all of these clients, the concept of "HTML support" does not mean that they can process the full range of HTML that a web browser can handle. Almost all email readers limit HTML features, either for security reasons, or because of the nature of the interface. CSS and Javascript can be especially problematic. A number of articles describe these limitations per-email-client; see 1, 2, 3, and 4

Client HTML e-mail UTF-8 support Image blocking Junk filtering Phishing filtering Thread view Conver- sation view PGP support S/MIME support
local server- side inline PGP/MIME or OpenPGP protocol OCSP CRL certificates on tokens, smartcards support
Alpine Yes Yes Yes ? ? ? Yes ? Yes ? Yes ? ? ?
Citadel Yes Yes No Yes Template:Refun ? ? No ? ? ? ? ? ?
Claws Mail Read-only Yes Yes Yes Yes Yes Yes ? Yes Yes Yes ? Yes Yes
Cone Yes Yes Yes Yes No No Yes ? No Yes No No No No
Template:Rh2 | Courier Yes No No Yes Yes ? No ? ? ? ? ? ? ?
Template:Rh2 | eM Client Yes Yes Yes No Yes No No Yes No No Yes ? ? ?
Elm ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Eudora Yes No Yes Pro only Pro only ? Yes No Yes Template:Refun Yes Template:Refun Yes ? ? ?
Template:Rh2 | Eureka Email ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Gnus Yes Yes Yes Yes Yes ? Yes ? Yes Yes Yes ? ? Yes
GroupWise Yes Yes Yes Yes ? ? Yes ? ? ? ? ? ? ?
i.Scribe / InScribe Read-only Yes Yes Yes No ? Yes ? Yes No No No No No
IBM Lotus Notes Yes Yes Yes Yes Yes ? Yes Template:Refun ? Yes Yes
(4.1.2+)
Yes Yes, [3] Yes Yes
KMail Yes Yes Yes Yes ? ? Yes No Yes
(with GPG)
Yes
(1.5+, with GPGME)
Yes Yes Yes ?
Mail Yes Yes Yes Yes ? ? Yes ? Yes Template:Refun Yes Template:Refun Yes Yes ? ?
Template:Rh2 | Mailsmith ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Microsoft Entourage Yes Yes Yes Yes Yes Yes ? ? ? Yes Yes ? ? Yes
Microsoft Office Outlook Yes Yes Yes Yes Yes Yes Yes ? No No Yes ? ? ?
Template:Rh2 | Mozilla Mail & Newsgroups ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Mozilla Thunderbird Yes Yes Yes Yes No Yes Template:Refun Yes Template:Refun No Yes Template:Refun Yes Yes Yes ? Yes
Template:Rh2 | Mulberry Yes Yes Yes No Yes ? Yes ? Yes Template:Refun Yes Template:Refun Yes Template:Refun ? ? ?
Mutt Read-only Yes Yes
(no support for images)
Yes ? ? Yes ? Yes Yes Yes ? Yes (with GPGME) ?
Template:Rh2 | Netscape Messenger ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger 9 ? ? ? ? ? ? ? ? ? ? ? ? ? ?
nmh / MH ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Novell Evolution Yes Yes Yes Yes ? ? Yes ? Yes Yes Yes ? ? ?
Opera Mail Yes Yes Yes Yes ? Yes Yes ? No No No ? ? ?
Template:Rh2 | Outlook Express Yes Yes Yes No ? ? Yes ? Yes Template:Refun No Template:Refun Yes ? ? ?
Pegasus Mail Yes Yes Yes Yes Yes Yes Yes ? Yes Yes
(sending is broken)
? No No No
Template:Rh2 | Pine Read-only Yes Yes No ? ? Yes ? Yes
(with Pine Privacy Guard)
No Yes ? ? ?
Pocomail Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
SeaMonkey Mail & Newsgroups Yes Yes Yes Yes ? Yes Yes ? Yes Template:Refun Yes Template:Refun Yes Yes ? Yes
Sylpheed No Template:Refun Yes Yes Yes ? ? Yes ? Yes Yes ? ? ? ?
Spicebird Yes Yes Yes Yes ? Yes Yes ? Yes Yes Yes Yes ? Yes
The Bat! Yes Yes Yes Template:Refun Yes Yes ? Yes ? Yes Yes Yes Partial Template:Refun Partial Template:Refun Yes Template:Refun
Template:Rh2 | Turnpike ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Windows Live Mail Yes Yes Yes Yes Yes Yes Yes ? Yes ? Yes ? ? ?
Template:Rh2 | Windows Mail Yes ? ? Yes ? ? ? ? ? ? ? ? ? ?
YAM ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Zimbra Yes Yes Yes Yes Yes Yes (depends on antivirus) Yes ? ? Yes ? ? ?
Client HTML e-mail UTF-8 support Image blocking Junk filtering Phishing filtering Thread view Conver- sation view PGP support S/MIME support
local server- side inline PGP/MIME or OpenPGP protocol OCSP CRL certificates on tokens, smartcards support
  • ^ Mozilla Thunderbird adds this feature in Thunderbird 1.5.0.4
  • ^  First release 6.0 (September 2003), enhancements introduced in release 7.0 (August 2005)
  • ^  PGP/GPG and S/MIME support require a free (included) plugin.
  • ^  Sylpheed has some limited ability to show HTML email. It can show the plain text that's left after stripping away all the HTML tags. Sylpheed has no ability to compose HTML.
  • ^  The Bat is not able to display inline images.
  • ^  The Bat! supports two modes of S/MIME: Internal Implementation and via Microsoft Crypto API[5]. CRLs and OCSP are only supported in the latter mode.
  • ^  The Bat! supports two modes of S/MIME: Internal Implementation and via Microsoft Crypto API. Internal implementation only supports Aladdin eToken Pro or Rainbow iKey1000[6] tokens and can import certificates (from PKCS#12/PFX format) which were created outside The Bat!. CryptoAPI supports any kind of tokens and smart cards which have a corresponding Cryptographic Service Provider installed.
  • ^  Citadel plugs Mail into SpamAssassin
  • ^  Eudora requires a plugin to handle PGP.
  • ^  Mail requires GPGMail-plugin.
  • ^  Using PGP in Thunderbird requires Enigmail.
  • ^  Using PGP in Outlook Express requires a plugin.
  • ^  Outlook Express does not display PGP/MIME signed messages.

Messages features

Client Label messages Reformat received messages Bi-​directional text support Composing messages Native images preview Postpone/​scheduled message sending Native documents preview
with colors with flag antidelete add note edit headers (e.g., Subject) forced recode Template:Refun Spell checking Signatures jpeg gif bmp png others txt pdf doc xls odt ods others
Alpine Yes Yes ? ? ? ? ? Yes Yes ? ? ? ? ? ? ? ? ? ? ? ? ?
Citadel ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Claws Mail Yes Yes Yes No ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
Cone Yes Yes Yes No ? ? ? Yes No No No No No No ? ? ? ? ? ? ? ?
Template:Rh2 | Courier Yes Yes No No ? ? ? Yes Yes No No No No No ? ? ? ? ? ? ? ?
Template:Rh2 | eM Client Yes Yes No No ? ? Yes Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
Elm ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Eudora Yes Yes No No ? ? ? Yes Yes Yes Yes Yes Yes QuickTime Yes ? ? ? ? ? ? ?
Template:Rh2 | Eureka Email ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Gnus Yes Yes Yes ? ? ? ? Yes Yes Yes Yes Yes Yes XPM ? ? ? ? ? ? ? ?
GroupWise Yes ? ? ? ? ? ? Yes Yes Yes Yes Yes ? ? Yes ? ? ? ? ? ? ?
i.Scribe / InScribe Yes No No Yes ? ? ? Yes Template:Refun Yes Yes Template:Refun Yes Yes Yes Template:Refun ICO, TIFF ? ? ? ? ? ? ? ?
IBM Lotus Notes Yes Yes ? ? Yes ? ? Yes Yes Yes Yes Yes No CGM, Lotus PIC, PCX, TIFF ? ? ? ? ? ? ? ?
KMail Yes[7] Yes No No ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
Mail Yes Yes ? Yes ? ? ? Yes Yes Yes Yes Yes Yes any QuickTime supported format ? ? ? ? ? ? ? ?
Template:Rh2 | Mailsmith ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Microsoft Entourage Yes Yes ? YesTemplate:Refun ? ? ? Yes Yes Yes Yes ? Yes PDF ? ? ? ? ? ? ? ?
Microsoft Office Outlook Yes Yes No Yes Yes ? ? Yes Yes Yes Yes Yes Yes Word, PowerPoint, Excel Yes ? ? Yes Yes ? ? PowerPoint|ppt
Template:Rh2 | Mozilla Mail & Newsgroups ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Mozilla Thunderbird Yes Yes ? ? with a plugin[4], not via IMAP[5] ? ? Yes Yes Yes Yes Yes Yes ICO Yes Template:Refun Yes No No No No No No
Template:Rh2 | Mulberry ? Yes ? ? ? ? ? Yes Yes No No No No No ? ? ? ? ? ? ? ?
Mutt Yes Yes No No Yes ? ? Yes Yes No No No No No ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger 9 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
nmh / MH ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Novell Evolution Yes Yes ? ? ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
Opera Mail No Yes No No ? ? Yes Yes Template:Refun Yes Yes Yes Yes Yes APNG, ICO, SVG, WBMP, XBM No ? ? ? ? ? ? ?
Template:Rh2 | Outlook Express No Yes No No ? ? ? Yes Yes Yes Yes Yes Yes ICO, art ? ? ? ? ? ? ? ?
Pegasus Mail Yes Yes Yes Yes in index No No Yes Yes Yes Yes Yes Yes TIFF Template:N/A Yes No No No No No RTF, HTML
Template:Rh2 | Pine Yes Yes ? ? No with a patch Template:Refun ? Yes Template:Refun Yes No No No No No ? ? ? ? ? ? ? ?
Pocomail Yes Yes ? Yes ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
SeaMonkey Mail & Newsgroups Yes Yes No No ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
Sylpheed Yes Yes No No ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
The Bat! Yes Yes Yes Yes ? ? No Hunspell Yes Yes Yes Yes Yes ICO, emf Yes Yes No No No No No No
Template:Rh2 | Turnpike ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Windows Live Mail No Yes No No ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
Template:Rh2 | Windows Mail ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
YAM ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Zimbra Yes Yes Yes Yes ? ? ? Yes Yes Yes Yes Yes Yes ? ? ? ? ? ? ? ? ?
Client Label messages Reformat received messages Bi-​directional text support Composing messages Native images preview Postpone/​scheduled message sending Native documents preview
with colors with flag antidelete add note edit headers (e.g., Subject) forced recode Template:Refun Spell checking Signatures jpeg gif bmp png others txt pdf doc xls odt ods others
  • ^  It's a frequent problem for people dealing with Cyrillic/Russian in email messages that the message is not encoded in the encoding declared in its headers and thus can't be read. With such a message (with a wrong declaration of the encoding), it well might be the case that it passed through several incorrect recoding stages while it was being sent and delivered; thus it's not possible to correctly render it and read it if one uses the common type of the interface for choosing the encoding (such as the menu in Mozilla Firefox).
An example of such a complex case of a wrongly declared encoding: a message was entered through a webform in the windows-1251 encoding, but the web interface incorrectly assumed that it was in latin-1; based on this assumption, it performed the recoding from latin-1 to utf-8. The result of this operation cannot be correctly decoded through the common encoding-selection interface; it can only be decoded through a two-stage recoding: first from utf-8 to latin-1, then from windows-1251 to utf-8 (assuming that one works in a Unicode environment). After it is decoded, it is desirable to store it in the recoded form instead of the original, in order to be able to read it easily afterwards, and to quote it for replies.
  • ^  Opera supports full integration with GNU Aspell, which is its requirement for spell checking.
  • ^  Pine supports full integration with GNU Aspell or other external speller, which is its requirement for spell checking.
  • ^ The recoding engine and interface extensions that would solve the described recoding problems have been developed as a patch for Pine; it is to be found in the package pine-4.58L-alt4.src.rpm(ftp) for ALTLinux (under the name pine-4.58L-alt2-0.4.1.diff). Its essential feature is to enable to forcibly recode messages, save them in the recoded form, and quote in replies.
  • ^  i.Scribe / InScribe supports full integration with GNU Aspell, which is its requirement for spell checking.
  • ^  i.Scribe / InScribe requires libjpeg.
  • ^  i.Scribe / InScribe requires libpng.
  • ^  Entourage can link a message to a note.
  • ^  Thunderbird requires SL8TR extension.

Database, folders and customization

Client Message file format Encrypted database Virtual folders Scheduled backup New mail notification Customizable interface Customizable keybindings Fragmented messages Template:Refun Database search with regular expressions support Indexed search Search folders Template:Refun IMAP search
ticker tray icon tooltip sound
Alpine mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile ? Yes Partial ? ? ? ? Yes No ? No Yes Yes Yes
Citadel ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Claws Mail MH, mbox No No No Yes Yes Yes Yes Yes Yes ? ? ? Yes Yes
Cone mbox, maildir No No No No ? ? ? Yes (colors) No No No No Yes Yes
Template:Rh2 | Courier Proprietary Yes (weak) Yes ? ? ? ? ? Yes (layout) No ? No No Yes No
Template:Rh2 | eM Client Proprietary (sqlite) No No No No Yes No Yes Yes (layout) No ? No Yes Yes Yes
Elm ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Eudora mbox No Yes No No ? ? Yes Yes Yes Yes Yes[specify] Yes Yes Yes
Template:Rh2 | Eureka Email ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Gnus babyl, maildir, mbox, MMDF, news, rnews, SOUP, outlook, oe-dbx No Yes No No ? ? ? Yes Yes Yes Yes No Yes Yes
GroupWise Proprietary Yes Yes Yes ? Yes Yesyes Yes Yes ? ? ? Yes Yes Yes
i.Scribe / InScribe Mail2 File No No No No ? ? ? Yes No No No No No No
IBM Lotus Notes Proprietary Yes [6] Yes Yes ? ? ? Yes Yes Yes Yes Template:Refun No Yes Yes ?
KMail mbox, maildir No Yes No ? ? ? ? Yes Yes No Yes ? Yes Yes
Mail Proprietary ? Yes ? ? ? ? ? ? ? ? ? Yes Template:Refun Yes Template:Refun ?
Template:Rh2 | Mailsmith ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Microsoft Entourage Proprietary (Personal Storage Table) ? Yes Partial Template:Refun ? ? ? ? Partial No No Partial Template:Refun Yes Yes Yes
Microsoft Office Outlook Proprietary (Personal Storage Table) Yes Yes Yes ? Yes Yes Yes Yes Yes ? ? Yes Template:Refun Yes ?
Template:Rh2 | Mozilla Mail & Newsgroups mbox ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Mozilla Thunderbird mbox No Yes ? ? Yes Yes Yes Yes Template:Refun ? No ? Yes (as of 3.0) Yes Yes
Template:Rh2 | Mulberry mbox Template:Refun Partial Template:Refun Partial Template:Refun Partial Template:Refun ? ? ? ? Yes ? ? Yes[specify] Partial Template:Refun No Yes
Mutt mbox, MMDF, MH, maildir Yes (with compressed folders patch [7]) ? (has limit command) No ? ? ? ? Yes Yes ? Yes ? (has header cache) No (easily integrated with mairix) Yes
Template:Rh2 | Netscape Messenger mbox ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger 9 mbox ? ? ? ? ? ? ? ? ? ? ? ? ? ?
nmh / MH MH No Yes No No ? ? ? Yes No ? Yes Yes Yes No
Novell Evolution maildir, mbox, MH No Yes ? No ? ? ? Partial Yes Template:Refun Yes Yes Yes Yes Yes
Opera Mail maildir (9.20 and Above), mbox (9.10 and Below) No Yes
(all folders are virtual)
No ? Yes Yes Yes Yes Yes No ? Yes Yes ?
Template:Rh2 | Outlook Express Proprietary No No No ? Yes No Yes No No Yes ? No ? ?
Pegasus Mail Proprietary No Yes No ? ? ? ? Yes ? ? Yes ? Yes Yes
Template:Rh2 | Pine mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Pocomail mbox Yes Yes Yes ? ? ? ? Yes ? ? Yes Yes Yes ?
SeaMonkey Mail & Newsgroups mbox ? ? ? ? ? ? ? ? ? ? ? ? ? Yes
Sylpheed MH No No No ? ? ? ? Yes Yes No No Template:Refun No Template:Refun Yes ?
The Bat! Proprietary Yes (RC2 128 bit)

(with Pro and Voyager version) Template:Refun

Yes Yes Yes Yes No Yes Yes Yes Yes Yes

(PCRE 6.2)

No Yes Yes
Template:Rh2 | Turnpike Proprietary Yes Yes ? ? ? ? ? ? ? Yes ? ? Yes ?
Windows Live Mail ? No No No No Yes ? Yes Yes No Yes No Yes Yes ?
Template:Rh2 | Windows Mail ? ? ? ? ? ? ? Yes ? ? ? ? ? ? ?
YAM ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Zimbra File system Yes Yes Yes ? ? ? ? Yes Yes Yes Yes Yes Yes Yes
Client Message file format Encrypted database Virtual folders Scheduled backup New mail notification Customizable interface Customizable keybindings Fragmented messages Template:Refun Database search with regular expressions support Indexed search Search folders Template:Refun IMAP search
ticker tray icon tooltip sound
  • ^  Fragmented messages are called truncated document in Lotus Notes.
  • ^  with Spotlight Mac OS X v. 10.4
  • ^  Search folders is called Smart Folders in Mail on Mac OS X v. 10.4.
  • ^  Mulberry is a dedicated IMAP client; If the IMAP server has these abilities, Mulberry can use them.
  • ^  This is for Mulberry's 'offline browsing' capability, which is turned off by default. In the default configuration no local copy of the mail is created.
  • ^  Search Folders are virtual folders that contain views of all e-mail items matching specific search criteria. Search Folders display the results of previously defined search queries.
  • ^  Editable keybindings is part of GNOME, provided "Editable menu accelerators" is enabled in GNOME's "Menus & Toolbars" control applet.
  • ^  Fragmented messages makes possible, for example, to send a large audio message as several partial messages, and still have it appear to the recipient as a simple audio message rather than as an encapsulated message containing an audio message. RFC 2046
  • ^  Because MH stores each letter in a separate file, it is trivially easy to (externally) search them with grep. This ease is shattered when non-raw encodings are used, such as base64.
  • ^  The Bat! Pro support two methods access to program when database is encrypted: password authorization and token authorization; Voyager support only password authorization and encrypted database is default and only available storage method.
  • ^  Thunderbird's interface can be user customized via the use of themes (which can reposition and skin controls)
  • ^  supported since Office 2007.
  • ^  when best encryption is used, .pst file cannot be read by a hex editor.
  • ^  With Entourage 2008, you can use AppleScript and various internal/external scheduling mechanisms to create timed backups of Entourage Data.
  • ^  With Entourage 2008 and later versions of 2004, you can use the Spotlight data to search what's in the Entourage database via regular expression in the file system in Terminal or via Spotlight's ...interesting...version of "regular expressions".

Templates, scripts and programming languages

Client Message templates Message templates individual for Support in message templates scripts, programming languages
new reply forward read confirmation save print JavaScript VBScript PHP Scripts Python Regular expressions Java Other (specify)
Alpine Yes Yes Yes ? ? ? any No No No No ? No ?
Citadel ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Claws Mail Yes Yes Yes Yes Yes Yes account
folder
No No No Yes ? ? Perl
Cone Yes No No No No No ? No No No No No No No
Template:Rh2 | Courier Yes Yes Yes No Yes Yes ? No No No No No No No
Template:Rh2 | eM Client Yes Yes Yes Yes Yes Yes ? No No No No No No No
Elm ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Eudora Yes Yes Yes Yes Yes Yes any No No No No Yes No No
Template:Rh2 | Eureka Email ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Gnus Yes Yes Yes Yes Yes Yes ? No No No No Yes No elisp
GroupWise Yes No No Yes Yes ? ? ? ? ? ? ? ? ?
i.Scribe / InScribe Yes Yes Yes No No No any No No No No No No Internal macros (similar to JavaScript)
IBM Lotus Notes Yes Yes Yes Yes ? ? ? Yes No No No Yes [8] Yes LotusScript, Formula language
KMail Yes Yes Yes No No No none ? No No No ? ? ?
Mail Yes Mac OS 10.5 (Leopard) No No No ? ? ? No No No No No ? AppleScript, Automator
Template:Rh2 | Mailsmith ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Microsoft Entourage Yes Yes Yes Yes ? ? ? ? ? ? ? ? ? AppleScript,Automator
Microsoft Office Outlook Yes Yes Yes Yes ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Mozilla Mail & Newsgroups ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Mozilla Thunderbird Yes YesTemplate:Refun YesTemplate:Refun Yes Yes Yes profile Yes ? ? ? ? ? ?
Template:Rh2 | Mulberry Yes Yes Yes Yes ? ? ? No No No No ? ? ?
Mutt Yes Yes Yes No ? ? any No No No No Yes ? Internal macros
Template:Rh2 | Netscape Messenger ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Netscape Messenger 9 ? ? ? ? ? ? ? ? ? ? ? ? ? ?
nmh / MH ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Novell Evolution Yes Yes Yes Yes ? ? ? ? ? ? ? ? ? ?
Opera Mail Yes Yes No No No No none No No No No No No No
Template:Rh2 | Outlook Express Yes Yes ? Yes ? ? ? Yes Yes ? ? ? ? ?
Pegasus Mail Yes Yes Yes Yes ? ? ? ? ? ? ? ? ? ?
Template:Rh2 | Pine Yes Yes Yes ? ? ? any ? No No ? ? No ?
Pocomail Yes Yes Yes ? ? ? Yes ? ? ? ? ? ? ?
SeaMonkey Mail & Newsgroups ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Sylpheed Yes Yes Yes ? ? ? ? No No No No No ? ?
The Bat! Yes Yes Yes Yes Yes Yes account
folder
address book group
contact
Yes Template:Refun Yes Template:Refun Yes Template:Refun Yes Template:Refun Yes PCRE 6.2 Internal and plugins macros
Template:Rh2 | Turnpike ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Windows Live Mail YesTemplate:Refun YesTemplate:Refun ? YesTemplate:Refun ? ? ? Yes Yes ? ? ? ? ?
Template:Rh2 | Windows Mail ? ? ? ? ? ? ? ? ? ? ? ? ? ?
YAM Yes Yes Yes ? Yes Yes ? No No No No ? ? ARexx
Zimbra Yes Yes Yes Yes Yes Yes any No No No No No ? ?
Client Message templates Message templates individual for Support in message templates scripts, programming languages
new reply forward read confirmation save print JavaScript VBScript PHP Scripts Python Regular expressions Java Other (specify)
  • ^  The Bat! supports JavaScript in message templates with the JavaScript Macro plugin.
  • ^  The Bat! supports VBScript in message templates with the XMP plugin.
  • ^  The Bat! supports PHP in message templates with the XMP plugin.
  • ^  The Bat! supports Python in message templates with the TBPyxie plugin.
  • ^  Weak "stationery" system that only accept pages done with Word.
  • ^  Thunderbird supports HTML templates with "Stationery" add-on.

See also

References

External links

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