[Dovecot] Migrating from CommunigatePro to Dovecot - anyone done this?

[Gavin Lawrie]

Apologies if this is in the archive - did look but couldn't find it.

Does anyone have any experience of migrating from CommunigatePro to Dovecot?  

We currently run CGP 5.3.4, supporting a small system (20 or so users, one domain).  We've been using it for years, and have a mixed bag of MailDir and mbox folders accessed via IMAP clients.  Some users have large mail accounts (15GB total).  We're looking to move as CGP is evolving into a complex "Messaging Centre" application (PBX, SIP, Mail, Groupware, Portals etc.) which we don't need / use.

I had a look on the Dovecot Wiki and under migration are discussions about various other mail systems, but I don't know enough about these to tell if they would also apply to CGP.

Any thoughts / suggestions would be welcomed.

Thanks

Gavin.
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