We are trying to enable POP and IMAP on our exchange server, but one of our users cannot login. We found out this is due to his Alias (under Exchange General) is different to his Pre-Windows 2000 login name. If we change the Alias will this have any negative effect for the user or cause any problems anywhere else?

Hi Nothing will happen if you change the alias name of a mailbox. A new email address will create based on the new email alias. If you are having any gateway application to allow, particular email alias to recieive email from external domain, you have to add the new alias.

But the orignal defined email address under the email addresses will still function correctly and with all stored email intact?

Yes, I have changed the alias on many mailboxes on various versions of exchange as users have changed their names and the mailboxes continue to function perfectly

On Wed, 10 Aug 2011 10:40:07 +0000, the evil monkey wrote: >We are trying to enable POP and IMAP on our exchange server, but one of our users cannot login. We found out this is due to his Alias (under Exchange General) is different to his Pre-Windows 2000 login name. If we change the Alias will this have any negative effect for the user or cause any problems anywhere else? See if using this format works for providing credentials: <AD-domain>\<AD-user>\<alias> --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP