Sorry for my English.

I'm running migration from MS Exchange 2003 (OS Windows Small Business Server 2003) to ZCS 8.0.4 ( Open Source Edition Server) by using ZimbraMigration (32-bit). All sent letters, address book, tasks were successfully migrated, except incomming mails for all users.
I don't know how and where I must search possible troubles (maybe in some log files, but what tokens for search I should use).

Somebody can give advice for the solution of this problem?