popbsmtpd watches syslog for successful POP and IMAP logins, and writes IP address entries to a database to permit SMTP mail relaying for a configurable duration. No changes to any other software are required, and it can process logins where the IP address and the authentication success are recorded on separate log entries (i.e., when using stunnel). It has a user-configurable scheme for recognizing and extracting values from log entries, making it possible to use with many POP and IMAP daemons without requiring any programming changes. These configurations can be tested using sample log data.
Kerio MailServer is an email and collaboration suite that comes integrated with direct over-the-air (OTA) ActiveSync support, over 14 anti-spam layers (including SpamAssassin), dual anti-virus options (including a ClamAV plugin), collaboration features in Outlook, Entourage, Outlook Mobile, VersaMail, WebMail, and iCal, email archiving, and live automated backups. It supports a variety of SSL-encrypted communication protocols including POP3, IMAP, STMP, and HTTP for WebDAV, CalDAV, Web mail, and wireless ActiveSync. Wireless capabilities include direct email push, synchronization of calendar events, contacts, and tasks, and remote wipe for Windows Mobile devices to delete company data in the event the device is lost or stolen. Authentication options include Active Directory, Apple Open Directory, PAM, and an internal database. It can be administered remotely using an encrypted channel.
popsneakerconfig allows you to comfortably manage the configuration file popsneakerrc. It allows you to create rules with a wizard, and can optimize your rules and highlight invalid rules. It can precheck whether your rules are doing what they are supposed to do. Searching in rules and importing new rules is also very easy. It is available in both English and German.
The Gordano Messaging Suite (GMS) is a highly flexible and reliable suite of messaging products. Customers can choose which components meet their needs from email, Webmail, collaboration, instant messaging, calendaring, SMS, and list server software all of which can be complimented by high level anti-spam, anti-virus, and archiving options.
pop3filter is a POP3 transparent proxy with support for filters. It allows you to apply filters to your incoming emails (to rename attachments or detect spam) even if your user agent doesn't have a feature for piping your email messages to an external program and you can't use a mail delivery agent.
poplimitd is a daemon process that monitors a server maillog file for POP3 or IMAP connections. Using configurable settings it monitors the rate of logins based on the user account and IP address. If it finds excessive usage, it will send a preconfigured email with the users information to that user asking them to stop. On servers that suffer from high POP3/IMAP load, this can dramatically modify user behaviour and limit POP and IMAP connections and load.