MailSite Collaborator is a high quality, easy to use email and calendar server for businesses, enterprises and service providers.  MailSite Collaborator includes integrated anti-spam, anti-virus, content filtering and attack prevention and also features a shared contact and calendar server.
                               

MailSite Collaborator comes in 5 different packages:

• Free SE 20
• SE - Small Enterprise
• LE - Large Enterprise
• SP-s - Service Provider (single server)
• SP-c - Service Provider (cluster)

Feature SE 20 SE LE SP-s SP-c SMTP/IMAP/POP/LDAP Yes Yes Yes Yes Yes Calendar Server Yes Yes Yes per user per user Supports SQL Server No No Yes Yes Yes Supports Clustering No No Yes No Yes Rich AJAX Web client Yes Yes Yes Yes Yes Anti-Spam / Anti-Virus Extra Extra Extra Extra Extra Cost Free! $495+ Call in Call in Call in

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