Claws Mail includes all of the features you'd expect, such as:
- Multiple accounts
- Threaded display
- Filtering
- Mime attachments
- Usenet news reading and posting
- SSL over POP3, SMTP, IMAP4rev1 and NNTP protocols
- GnuPG support (with GPGME)
- User-defined headers
- Colour labels
- UNIX mailspool support
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- Multiple MH folder support
- Mbox import/export
- External editor
- Message queueing and drafting
- Automated mail checking
- Line-wrapping
- Clickable URIs
- Addressbook
- Printing
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Claws Mail also includes a lot of useful and powerful features, only some of which are listed below:
- Plugin mechanism (see below)
- Actions
- Templates
- Built-in image viewer
- Face and X-Face headers support
- Reply-finder
- Fast message cache system
- Per-folder processing mechanism
- Spell checking (with enchant)
- Drag'n'drop support
- POP before SMTP authentication
- Automatic saving of message when composing
- Handling of Unix signals
- Control by command-line
- Built-in GDB crash handler (just in case ;-)
- Customisable toolbars
- Powerful Quick Search function
- 'Dynamic' signatures
- Font configuration
- Themes mechanism (see available themes)
- Automatic account selection
- Message scoring
- Ability to hide read messages
- IMAP over SSH Tunnel
- IMAP: CAPABILITY support.
- Return-Receipt handling
- Message priority setting
- 'Ignore thread' option
- Anti-phishing URL check
- Configurable notification of new mail
- 7bit and 8bit encoding of attachments
- NNTP: auto-mark cross-posted messages
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- Configurable (non-)display of images
- Full coloration of messages
- User-definable quotation characters
- Watch marked threads
- Log window
- Reply to part of an email
- Replied and forwarded flags
- Man page and documentation
- Full GnuPG support
- 'On-the-fly' changing of the type of GnuPG encryption
and/or signing used (MIME/ascii) in the Compose window
- Manual selection of MIME type and encoding
for attachments
- Save all attachments in a mail at once
- Save 2 or more selected files to a single file
- SSL certificate management
- User-definable newsgroup names abbreviation length
- Address book: import from LDIF, Mutt or Pine natively
- Address book: import from other mailers via scripts
- Auto-completion of recipients (also via LDAP)
- Harvest addresses for addressbook
- Addressbook export to various formats
- Per-folder properties:
- Return-receipt
- Save messages
- Default To:
- Subject simplification
- Folder CHMOD
- Default account
- Folder colour
- Offline synchronisation
- Default dictionary
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The following plugins are included in the source package.
- Bogofilter
- Enables the scanning of incoming mail received from a POP,
IMAP, or LOCAL
account using Bogofilter. It can optionally delete mail
identified as spam or save it to a designated folder, and also
can be used to train Bogofilter.
Bogofilter is available from
http://www.bogofilter.org/
- Dillo HTML Viewer
- Enables the viewing of html messages using the Dillo web
browser, version 0.7.0 or newer. It uses Dillo's --local
option by default for safe browsing. Dillo is available from
http://www.dillo.org
- PGP/Core
- Handles core PGP functions and is a dependency of both the PGP/Inline and
PGP/MIME plugins. Requires GnuPG and GPGME:
http://www.gnupg.org/gpgme.html
- PGP/Inline
- Handles PGP/Inline signed and/or encrypted mails. You can
decrypt mails, verify signatures or sign and encrypt your
own mails. Requires GnuPG and GPGME:
http://www.gnupg.org/gpgme.html
- PGP/MIME
- Handles PGP/MIME signed and/or encrypted mails. You can
decrypt mails, verify signatures or sign and encrypt your
own mails. Requires GnuPG and GPGME:
http://www.gnupg.org/gpgme.html
- S/MIME
- Handles S/MIME signed and/or encrypted mails. You can
decrypt mails, verify signatures or sign and encrypt your
own mails.
- SpamAssassin
- Enables the scanning of incoming mail received from a POP,
IMAP, or LOCAL
account using SpamAssassin. It can optionally delete mail
identified as spam or save it to a designated folder, and also
can be used to train a local Spamassassin (or a remote one if
Spamassassin >= 3.1 is installed both locally and remotely).
SpamAssassin is available from
http://spamassassin.apache.org/
- Trayicon
- Places an icon in the system tray that indicates whether
you have any new mail. A tooltip also shows the current
new, unread and total number of messages, and a contextual menu
allows the most common operations.
- More...
- Additionally, several external plugins are available on the Plugins
page. They are not included in Claws Mail to minimize the dependencies and size of
the core software, but provide nice, extra functions.