Clement 2.6-2.16 / 2.1-141.10

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Clement, SMTP server, used to filter virus/spam/unwanted at SMTP protocol level.

Updated by jmrcpn on Friday, May 31, 2013.

Clement is an Email server application.

The main function of this application is to block unwanted mail (spam) as soon as possible in the email exchange process.

Clement's purpose is to accept or reject email while the SMTP session, initiated by the Email sender, is still pending,accepting legitimate Emails without the need to return an error status to non-existent or "borrowed" return address later on.

Clement can operate in two modes, either the mail is taken into account locally and stored in the recipient own area, or it can transmit the mail to an another SMTP server (sendmail, postfix, exim, Exchange,....). Each email domain name clement know about can be treated in a of these two modes depending on the group to which the domaine name has been set.

Each mail is verified by a virus scanner (ClamAV), while the SMTP connection is still open, yet the refusal of mail and the reason for refusal is notified to the actual sender.

The mail management is via a web interface and can be delegated to three administrative levels (Root-Admin, Group-Admin, Domain-Admin), a standard user on the other hand can access its own logs, (sent e-mail status, e-mail rejected, quarantined email, etc. ..). With this interface the user can handle the rejection and acceptance letters to him address.

Users who are level 'Admin' can access the session logs (via the web interface), these logs are extremely detailed and presented in context, such you have all the information about one mail in the blink of an eye.

Clement uses a SQL database (PostgreSQL, MySQL) to store and manage logs, user profiles and dynamic management of directives concerning the sender-receiver relationship.

Clement is licensed under GPL, the binary and source code can be downloaded freely.

Dowloads:5234
Platforms: Fedora, RedHat Entreprise,centos,scientific
Requirements: Linux
2.6-2.16
2.1-141.10

Latest releases :

 
2.5-148.5 [Stable]
Changes
Smart relaying improvement, when IP is within therelayed list, 'enveloppe from:' is checked to verify if theoriginator is known and still active. If originator want touse an external email reference (hotmail, gmail, etc..),this external email address must be found within a"multi-path' list and linked to an active known user. Thisto avoid to relay spam when the end user workstation iscompromised and not related 'enveloppe from: is usedby the bots.Various small bugs fixe and logs improvement.

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Contact Information

Author / maintainer:
Jean-Marc Pigeon
Web site:
http://www.clement.safe.ca
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