Quote:> IMAP=<looks around nervously>
IMAP Port is 143 for unencrypted and 993 for encrypted communication.
Quote:>> I am getting ready to launch my Exchange 2003 publically
>> for the first time. Which ports to I need to have open
>> on my firewall to ensure proper authenitcation.
I didn't see MAPI on your list, but just to make sure you know, with
Exchange 2003 (and Windows 2003 on all Exchange servers and DCs involves
in the communication) you can proxy MAPI calls over Ports 80 or 443, just
like in OWA. The feature's called RPC/HTTP and requires the client to
have at least Windows XP SP1 and Outlook 2003 installed. We have it
deployed for a couple of users, and I must say it works surprisingly good
(and even fast).