troubleshooting Question

Incoming email to Exchange via TLS

Avatar of mcballar65
mcballar65 asked on
ExchangeEmail Protocols
5 Comments1 Solution1384 ViewsLast Modified:
We are running Exchange 2003. I have a single SMTP Virtual Server and a number of routing connectors.  I have one that routes all email to the Internet and two others that route email to specific domains. The later two belong to partners of ours with whom we have a direct network connection so the email never goes to the Internet. Our outgoing email goes to our email filtering service and then on to the recipient.  I want to establish a TLS connection with the filtering service, but not with the partners.

I have installed a certificate on our SMTP V/S. I went to the routing group and activated TLS.  I have also gone to the SMTP V/S on outbound security and activated TLS.  I then wen to our filtering service and turned on TLS as the only want to process outbound email. When I send an email out to an Internet address, it goes just fine and I can see with Wireshark that the body text of the message is unreadable.  I have also confirmed that I can send emails to our partners who don't support TLS and whose connectors I have NOT activated TLS. Using wireshark I can see that I am able to read the body text of those emails.  I have also confirmed that I can receive emails in from those partners. Currently I have the filtering service set to deliver emails to us just using SMTP...and that works OK.  However, when I configure the service to send via TLS only, I am unable to receive emails from the Internet into my Exchange server.

Does anyone have any idea what I've done wrong?

Join our community to see this answer!
Unlock 1 Answer and 5 Comments.
Start Free Trial
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 5 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