* Peter Corlett via mailop: > Hetzner has an elaborate filtering and monitoring system in place on > its customer servers to prevent abuse. Those which seem relevant here > are that servers are effectively directly plugged into a router[0] and > cannot use IP addresses not assigned to them, and outgoing port 25 is > blocked by default and is only lifted on request.
While Hetzner indeed monitors network traffic to catch, for example, network scans originating from their infrastructure, I can't confirm the blocking of TCP port 25 as a default measure. Is this perhaps a recent change? None of the physical or virtual Hetzner servers I have operated for both customers and myself over the past 20ish years had any port restrictions. A good portion of these servers were, in fact, dedicated mail servers, so I would have noticed blocks on port 25. -Ralph _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
