I have currently just migrated from an exchange 2000 to exchange 2007. Most of our staff connects using the exchange in their outlook client. There are about 5 clients that get their e-mail either via POP3 or IMAP. The IMAP seems to work, it is the POP3 that gives me grief.
Here are the settings for the Outlook Client
The normal settings have been set. The user credientials, mail server IP addresses, and Login using Secured Password Authentication is checked. Under the "Outgoing Server" tab nothing is checked. [If this box is checked then when you click the test settings box the send e-mail fails]
Under the "Advanced Tab" I have the outgoing port reading 995 with SSL checked, the incoming port as 25 [587 will not work when you test the settings] with SSL checked.
For the Exchange Hub Transport Default Exchange Client and the Exchange Client under the Authentication tabs they each have the following checked:
Transport Layer is checked
Basic Authentication is check; Offer basic authentication is checked
Exchange server authentication is checked
Integrated windows authentication is checked
When I send an e-mail outside of the organization I receive the folloiwng error:
550 5.7.1 Unable to relay
My Outllook 2003 client receives e-mail fine.
Any help will be greatly appreciated.