We have an instance that has occured twice in the last two weeks. Mail is routing out but we seem to be losing connection for incoming mail. I have check the logs and cannot find anything that would indicate a problem.
I would appreciate if anyone has experienced this and resolved to help me out.
Thanks
Subject: Can Send but Cannot Receive Mail
You will need to provide us more information if we can give you any good suggestions. I can make this recommendation. During the episode when you can’t receive inbound mail, I would check both inside your firewall and from out whether you can execute a simple telnet session to your email servers on port 25. Do all of these steps from inside and outside of your firewall. It will help you verify where the problem may be.
At a command prompt on a pc inside of your firewall, type:
telnet mailhostname.domain.com 25
Helo domain.com
MAIL FROM: tester@domain.com
RCPT TO:legitimateaddress@domain.com
data
.
quit
Check to see if you can send a simple SMTP message. Use your domain, hostname, and valid email addresses in the above framework. If you receive the email, you know that the SMTP Listener task is functional on your Domino server. It is now not a Domino problem but is related to network or firewall issues.
Then try the same commands from a PC outside of your network firewall. If it fails, simply try and ping your hostname. You may be having network, firewall, or DNS issues.
Hope this helps.
Kevin