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.
Kerio MailServer is a secure corporate Internet messaging server for SME. It integrates SpamAssassin, McAfee anti-virus, SSL encrypted POP3, IMAP4, SMTP, WebMail (HTTP) and WAP protocols, attachment/content filtering and a MAPS/user-defined anti-spam database. It supports multiple domains, automated replies, SMS notifications, shared and public folders, email folder backup, full Active Directory implementation, mailing lists, and shared contacts. It runs on Red Hat 7 and 8, Windows 98/ME/NT/2000/XP, and Mac OS X 10.2, and is available with English, French, Dutch, and German user interfaces.
Korallenriff is a program that collects input from different network sources and stores their data into one database. For example, it can receive POP3 mail or can fetch NNTP groups and store the received messages in a database. One can then, for example, use the database data within a Web site to display the latest postings of a newsgroup or to create an online mailing list archive. Another possible use would be to build a blogging-software where one can post via email.
Mail ConfiGuru is a standalone cross-platform tool and library that displays the configuration of email clients available to the currently logged-in user. It provides one interface to the settings of all supported email clients, which currently includes Mozilla Thunderbird, Mozilla Mail (SeaMonkey), MS Outlook, MS Outlook Express, KMail, and Ximian Evolution.
MailStripper Pro is a mail scanner that aims to remove spam and viruses from incoming mail. It recognises and decodes many obfuscation techniques used by spammers and uses several different mechanisms to recognise spam which are immune to Bayes poisoning, and has achieved real-world success of over 99.8%. It is MTA-independent and does not implant itself into your mail server. Instead, it functions as a proxy, allowing the MTA to reside on a different server.
Melon MailServer is a simple mail server emulator for developers. It can emulate POP3 and SMTP services. The SMTP facility receives and stores all the messages sent to it rather than sending them. The POP3 facility allows you to download any messages without authorization. The server is designed to accept all messages for any email accounts. It can be very useful for testing Web applications and other software applications.
Microbrew Message Center is designed to be an immensely scalable mail platform supporting multiple users, multiple domains, and multiple mail servers. It is akin to iPlanet or post.office but is not as complex and uses open source software to perform mundane services such as Web and mail services.