@jfish said in remote mail server rejects connection after 2 hours:
Has the remote host black listed my external IP address now
Is that a question or a fact ?
Check with them ?
Packet capture the traffic to them, using their IP, TCP, and the ports 110 143 or whatever you use.
If you set Outlook to sync with mail servers every minute or so, then yes, you would get blacklisted everywhere ^^