
Originally Posted by
marcmac These logs are from the MTA, right?
Is there anything interesting about the network, or are the boxes on the same LAN?
Is this an accurate description of what you're seeing:
Periodically, mail from the mta->mailstore will stop delivering, with the "delivery temporarily suspended" message. At the same time, mail from the mailstore->world will start to timeout?
If that is the case, then I don't think it's just the mailstore, since that wouldn't explain why the MTA instance on the mailstore is timing out. Is it pointing to a relay_host, or is it delivering mail directly to the world? I'm curious to see if the problem could be DNS related.