Microsoft Outlook - Big mailboxes hang after IMAP migrations

EQ Admin

EQ Forum Admin
Staff member
I have done a variety of IMAP mailbox migrations lately and Microsoft Outlook has been giving me some consistent grief.

Any time I move a large mailbox (1000-2000+ MB) Microsoft Outlook hangs and requires that the profile be deleted and recreated.

No server setting or other configuration changes were required for these mailbox moves.

Does anyone know of a way to make this more transparent for customers so that Microsoft Outlook can handle a behind the scenes email migration better?

Other mail programs such as Mozilla Thunderbird don't seem to have a problem with a large IMAP mailbox moves to a new server.