@1 Helpdesk XP Perl is a very powerful Web-based helpdesk system. It supports file attachments, hidden remarks, priority marking, etc. Unlike other similar products, this script does not use the conventional "assign/completed" method to close past tickets. Instead, it uses an intelligent method to sort/rank inquiry tickets. You can even tell whether your replies have been read by the visitors.
ACL Policy Daemon communicates with the Postfix MTA using the Policy Delegation Protocol, implementing an ACL (Access Control List) system. Key features: greylisting with flexible storage using memory for fast responses or disk for high persistence, SPF validation, control of messages by day/time, variable message size limits per domain or email, multiple RBL checking, and various ACLs available to use and combine. The configuration is simple and intuitive.
Approver is a set of scripts for automatically approving posts to Majordomo-moderated mailing lists based on the sender's email address. Approver also converts HTML email posts to plain text by first filtering them through DEMIME, and it bounces all posts submitted to mailing lists made by non-list members, preventing list moderators from being bombarded by bogus submissions created by email worms and viruses originating from list member's infected computers.
Artica for Postfix is a secure Web interface for Postfix administration. It is designed to reduce the cost of creating and managing a full Linux mail server. It supports Postfix, Kaspersky Anti-spam, Kaspersky Anti-Virus, Bogofilter, Milter-greylist, SpamAssassin, Clam Antivirus, Amavis, OpenLDAP, SQLite library, Cyrus-imap, Procmail, Fetchmail, DnsMasq, Mailman, Sieve, Yorel script, QueueGraph, MailGraph, AWSTats, geoip, and more.
BulkWatch is a utility that monitors sendmail's 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 number of seconds. Email in excess of that would trigger an action, which can be any of the following: display an alert to the screen in foreground mode; log an alert to syslog; email an alert to a predefined email address; or run an external command with the IP and number of messages as arguments.
CyrUp is a Web-based user management interface for mail systems based on the Postfix MTA, Cyrus IMAP, and MySQL or PostgreSQL. CyrUp features multi-domain support in two ways, crypted or clear-text passwords, and administrative right delegation on a per domain basis. The CyrUp is well-suited for mail systems with up to 100 mailboxes per domain.