I have always used Outlook Express with IMAP here at JH and it works fine. I installed Outlook 2003 last night, migrated my email accounts into it from Outlook Express, and I'm getting these errors: It is consistent that at least one of my 3 IMAP accounts gets this error every time it goes out to check for mail. But it moves around between 1, 2 or all 3 of these IMAP accounts. All POP3 accounts are working fine. If anyone has an idea of how to resolve this problem I would greatly appreciate the tip. Thanks.