Thought I would post here and see what else to check, as I'm experiencing an odd out-going mail issue.
Running 5.6.8-B2431 as an out-going server only. (One account that is sending the mail, one rule to delete all incoming mail to that account, including and failure-to-send emails.)
Delivery settings: Retry count: 2, Time between retries: 30mins.
At some point during the night, one receiving email address server starts to timeout, giving the error in hMail logs:
Code: Select all
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
Even emails to *our own receiving server* on another IP start to fail with this error message.
Here's the odd thing, though - pausing/starting the service does not change anything. Stopping and restarting the service (Service Manager) does not change anything.
However, if Clear the Queue, Stop/Restart service, and then try another email to our own server, the message goes through without issue.
Now here are two things I haven't done yet, but plan on:
(1) Clear the queue without stopping/starting server.
(2) Watch incoming connections to our other server, and see if a connection attempt is even made.
Other than those, though, any one have anything to check?