I recently installed Exchange 2010 to one of my customers.
At first everything looks good, Autodiscover working fine, OWA working fine.
The problem is with POP3 and IMAP, because the incoming mail works perfect, but I cannot set up the outgoing server.
The settings are basic: Outgoing server requires authentication, when I'm trying to test account settings, Outlook keeps asking me for user\pass and not accepting the credentials anyway.
Can you please assist me here?