Free imap4 software for linux

gnubiff project is a mail notification program that checks for mail and displays headers when new mail has arrived.
Main features:
- Multiple mailbox support
- pop3, apop, imap4, mh, qmail and mailfile support
- SSL & certificates support
- GNOME support with complete integration to panel
- GTK stand-alone support
- Automatic detection of mailbox format
- Mail header & content display
- IDLE state support for imap4
- FAM support for mh/qmail/mailfile
- PNG animation support
- Highly configurable
- Spam filtering
- HIG 2.0 compliance
- Small memory usage
Installation:
To install gnubiff with GNOME:
./configure --prefix=`pkg-config libpanelapplet-2.0 --variable=prefix`
make
make install
To install gnubiff with GTK only:
./configure --disable-gnome
make
make install
Enhancements:
- Showing/Hiding popup via SIGUSR signals
- Options for showing/hiding popup/applet in the taskbar
- Several small bugfixes

bodek project is a mail notifier that stays in the system tray and shows a pop-up when new e-mail arrives (similar to KBiff and Korn).
Currently bodek supports POP3 and IMAP4 protocols, with both secure and insecure logins.
bodek handles non-conforming and badly configured mail servers better then most other programs of this kind.
Let me know of any bugs you manage to find (shouldnt be too hard) and of course, Patches Welcome (TM).
Main features:
- POP3 and IMAP4 support
- support for secure login
- uses KWallet for secure password storage
- many many cool bugs for everyone to find!

WapReader is an IMAP4 based wap mail server.Mobility is one of the key factors shaping how companies and end users conduct daily affairs. This application makes you to be always available and to read your mails very quickly, wherever you are.
Businesses that embrace the idea of the Mobile Information Society will reinvent themselves as real-time organizations, where access and interaction can be instant. Studio 908 WAP-enabling software solutions provide platforms and tools for building innovative mobile services.
Main features:
- imap4/pop3 support
- ssl support
- supports base64 and quoted-printable mail encodings
- supports all charsets supported by iconv()
- written with PHP
- user friendly interface
Enhancements:
- Storing auth info in cookies.

SOPE Application Server is an extensive set of frameworks (16 frameworks, ~1500 classes) which form a complete Web application server environment.
Besides the Apple WebObjects compatible appserver extended with Zope concepts, it contains a large set of reusable classes: XML processing (SAX2, DOM, XML-RPC), MIME/IMAP4 processing, LDAP connectivity, RDBMS connectivity, and iCalendar parsing.
The individual frameworks of the package can be used standalone (for example in Cocoa applications) and do not require the application server itself.
For MacOSX developers, the package includes SOPE:X, which contains special Xcode and Cocoa support for SOPE.
Enhancements:
- This release fixes a set of minor bugs.
- It improves the vCard parser, the IMAP4 client library, the MySQL adaptor, and BSD packaging.

Animail is a multiserver POP3/APOP/IMAP4 (with or without SSL) mail retrieval utility. As the tittle of this section suggests, Animail can be used with other external filters to combine his filtering skills with the ones already on Animail. Those filters (you can specify any number of them) will be called just after downloading a message and just before delivering it; depending of the return value of some output of that filter the message will be delivered, ignored, or copied to a log mailbox (so you can see if those filters are not deleting important mail). The commands discussed on the examples of this subsection are detailed on the command block reference.
Main features:
- You can activate several filter to message size, maximun number of messages to download, or delete messages on the server based on a set of regular expressions written in a config file if they match the message header (in this case it will only download the header, not the entire message).
- It can be combined with other mail filters (like SpamAssassin or Bogofilter) in a easy, elegant and documented way. This way Animail uses those programs like plugins and can extends without limits his filtering capabilities, aplying those other filters-plugins to the mails just after they are downloaded and just before they are delivered, giving those other filters the change to decide if a mail is or is not spam.
- It allows downloading mail from several mail servers and those can be written to a local mailbox with mbox format, a QMail style directory (unstable version), or better, be resent to a local SMTP like Sendmail (any SMTP is valid).
- It can forward the downloaded mail to another email adress (if we have the SMTP option activated), or to a coma separeted list of adresses.
- We can configure the download order of the messages based on his size (arrival order, first the bigger messages or first the smaller messages). This allows us, for example, to get first the smaller messages so we can start reading them while a multimegabyte message is being downloaded.
- It has a silent mode with redirects all output to the system log instead of to the console. This is useful if we want to make script that periodically checks for mail (2 examples of this scripts are included in the distribution).
- The program output is a lot more friendly that the one of Fetchmail and others MDAs. When it download a message shows the message origin, and a percentual indicator of the download of the message, over a total given in bytes, kilobytes, megabytes, terabytes depending of the message size (tired of huge bytesize digits? tired of dots?) [Current version supports colored output]
- It has a good speed. In a fast computer (x86 350+), working in text mode and with the -t Switch enabled it can be faster than Fetchmail. The faster is the computer, the bigger is the difference. This only applies to local networks, on internet they are equally slow (internet is the bottleneck).
- To quickly configure Animail after installation create a .animail directory on your home dir, copy the file /usr/share/doc/animail/animailrc and edit to your taste.

Deinonychus is a streamlined email client that is designed to be fast and simple, while still retaining basic functionality. IMPORTANT: Deinonychus uses basic authentication for both IMAP and POP stores, which means that your password will be sent in the clear. If you are security minded or do not know what this means, it is recommended that you do not use Deinonychus to receive email messages.
This project started with the belief that managing email can be replaced by a combination of sorting, flagging, and filtering.
My ideal message retrieval protocol would pretty much be halfway between POP and IMAP. This is why Deinonychus treats each email store simply as a collection of messages.
Main features:
- Access to IMAP4, POP3, and Hotmail message stores.
- Parsing and display of MIME compliant messages.
- A bare bones contact list.
- A basic filtering mechanism.
- Archiving of messages to disk.
- Composition of MIME compliant messages.