If not already set, try turning on encryption in Outlook. ----- Original Message ----- From: "Paul Steele" < paul . steele @ acadiau .ca> To: "MS-Exchange Admin Issues" < exchangelist @ lyris .sunbelt-software.com> Sent: Tuesday, May 11, 2010 7:21:23 PM GMT -05:00 US/Canada Eastern Subject: Outlook won't connect to Exch2010
We’ve encountered yet one more problem on our new Exchange 2010 server. When the server install was first completed, one of the first things I did was create a test account and connected to it using Outlook. It worked as expected. OWA also worked fine, as did access to the account from an iPod Touch. When Outlook tries to verify the user account, it says it can’t connect to the Exchange server. One thing I’ve done since the install was completed was install a UC certificate and it works as expected with OWA. Being paranoid I removed the UC cert and assigned services back to the default Exchange cert, but that didn’t help. At this point I’m not even sure if it’s a certificate problem. I tried setting up Windows Mail using both POP3 and IMAP protocols, and both of those protocols failed as well. The error message indicates that the server is rejecting the username/password but since I know I’m using the right credentials there’s obviously something else happening. What would allow OWA to work but break everything else?
