Our existing mail server is linux/exim/pop/imap. I'm in the process of implementing Scalix. I'd like to run the two servers side-by-side and move users (around 40 of them) across in small groups.
The MX record for domain.com currently points to post.domain.com
Scalix has been installed on mail.domain.com
I'd imagine that this coexistance would work as follows:
1. Create Scalix accounts for the first batch
2. Set .forward files on the old box to user@mail.domain.com
This is fine for users of the old system, but how will new Scalix users be able to mail users on the old box? Do I instead need to create all of the duplicate accounts on the new server first, set them all initially to forward to user@post.domain.com, then batch-by-batch, remove this forwarding from old to new and add from new to old? What about group aliases on the old - duplicate these too?