troubleshooting Question

Exchange 2010 and 2 ISP connections

Avatar of Bosaloski
BosaloskiFlag for United States of America asked on
7 Comments1 Solution771 ViewsLast Modified:
My network contains 1 SBS 2011 server that has Exchange 2010, a Cisco ASA 5505 firewall, and a Comcast and AT&T modem (for ISP redundancy).  I have configured the ASA, so that when the 1st ISP goes down the ASA fails over to the 2nd ISP and the users can get to the Internet.

I have my MX record pointing to a Spam filter that then forwards the email onto our Exchange server.  I have set up the 2nd ISP IP address for Exchange in the spam filter.  When we are on the 2nd ISP we can get incoming email, but outbound email stays in the queues in Exchange.

Is there something that I need to do in Exchange 2010 to allow traffic to go out through the 2nd ISP?  Is creating a 2nd MX record a possible solution?  If so, can it also point to my spam filter or does it have to point directly to the Exchange server?

Thanks for any help that can be provided.


Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 7 Comments.
Join the Community
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 7 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros