I'm using SmarterMail 7859 and I am preparing to transfer some users from an old mail server to SmarterMail.

The starting servers are MS Exchange or Kerio Connect.

To transfer the emails I use the Connectivity --> Email Retrieval function via IMAP set automatically, so the emails are updated from the old server to the new SmarterMail as they arrive and the day that the switch will take just a few minutes.

The problem is this: if my client reads a mail on the old server (and then it goes to the READ state), the state of the same anon is updated on smartermail (it remains UNREAD).

The same happens if I delete an email from the old server: in SmarterMail the email remains and is not deleted.
Furthermore, in this case the situation is even worse: the e-mail deleted from the INBOX of the old server remains in the INBOX of SmarterMail, and moreover (since in the old server the e-mail is moved to the trash) I find a duplicate in the trash folder (or in the corresponding in Italian ) of SmarterMail. So the deleted emails are even duplicated!

This is a big problem and makes Connectivity --> Email Retrieval via IMAP near to useless.