[plug] Exchange killer: Merak Email Server/Icewarp?

[Kwaka]

Reference: http://www.icewarp.com/

Although this is not a free solution, it follows multiple open protocol
standards with seemingly smooth integration. I only witnessed it in
use, but I haven't seen anything as nicely done as this in the linux
groupware department. From an old thread to the tune: Opensource
groupware stinks.

Short feature list:

*Internet protocol compliant:*
  * SMTP/ESMTP/POP3/IMAP4rev1
  * Jabber/XMPP
  * LDAP
  * HTTP/FTP
  * IPv4/IPv6
  * SNMP
  * TLS/SSL on top of all possible protocols

*Administration and remote access:*
  * Command line wizards and setup
  * HTTP administration interface
  * Remote administration console

*Account types and options*
  * Multiple domains & users
  * Mailing lists & list servers
  * Remote accounts
  * Executables
  * Catalogs
  * Notifications

Complete feature list:
http://www.icewarp.com/Products/Merak_Email_Server_Software_Linux/index.html