Free email software for linux

BulkWatch is a utility which monitors sendmails logs and takes a specified action when an ip has exceeded your configured maximum settings.

You can specify that users may send X messages in X # of seconds, email in excess of that would trigger an action, which can be any of the following;

* display an alert to screen in foreground mode
* log an alert to syslog
* email an alert to a predefined email address
* run an external command with the ip and # of messages as a arguments

The Email Server is designed to provide services offered by its commercial email products, such as IMAP/POP services, Web-Based Email Interface and Administration, Mail Filtering, Spam Blocking and Directory-Based Authentication and Addressbooks.
RH Email Server is fine for businesses and organizations of all sizes. Multiple commercial and educational installations are already using this project. The largest current user load that has been reported is 7,000 + users.
Interoperability between RHSD projects such as the RHSD Email Server and the RHSD Domain Controller will allow for use of Single-Sign On. RHSD also utilizes IETF Standardized projects and therefore will be compatible with any Directory system compatible with LDAP v.3.
Main features:
- Web-Based Email Client for Users
- LDAP Directory / Authentication
- Mail Filtering
- Addressbooks
- Web-Based Administration Tools
- Role-Based Tool Delegation
- Spam Blocking

TrollBooth is email filtering and administration software intended to run on a dedicated FreeBSD email filtering server. Web-based administration tools allow easy and secure management of the most-commonly-used features.
The whitelist adviser makes delivery assurance simple for non-technical users. Automatic installation and minimal additional configuration are major project goals.
TrollBooth uses the best features of Postfix, SpamAssassin, and Clam AntiVirus, and centralizes or automates configuration and control.
Enhancements:
- The reports section of the Web interface has been enhanced.

send_yahoo is a sendmail substitute for clients like mutt.
It sends your email using your Yahoo! Web mail account. send_yahoo is a mechanoid script.
Enhancements:
- This release adds a missing lib_rharris module.

MailGoose is an off-line mailer package for people who use nail, PINE, elm, Emacs mail mode, or other simple email software. It is particularly useful for laptop users.
You can browse the URLs of your mail spool, mbox, or copy of an email message, create an offline draft reply of an email message, edit your drafts in your favorite editor, create a new
message, or send all pending drafts.
Think of MailGoose as the useful bells and whistles of the big email clients made available to the discriminating console-mode hacker.
Enhancements:
- Documentation and install fixes.

Email sends email to remote SMTP servers via the command line, which makes it useful in cron jobs. It will send to any RFC standard remote ESMTP server, and will allow you to encrypt, sign, and design your message on the fly.
It has the capability to use signature files with dynamic options, address book functionality, and users can also attach pictures, binary files, documents, or whatever they want. It is completely compatible with GNUPG for encryption and signing, and is easy to configure and use.
Enhancements:
- A bug where an assert caused an abort when encrypting any message with GnuPG under Cygwin has been fixed.
- Compile time problems where the compiler would complain about SIG* being undeclared have been fixed.
- There is some minor source code cleanup.

OutOfOffice answers your email with the message you have set when you are out of your office.

OutOfOffice is like Outlooks Out of office function, but you dont need Outlook or Exchange.