Hi, all,
I'm having a problem with hackers trying to break into my email server
with various userid's and passwords, I suspect on port 25 (but haven't
proven it). I do eventually block the IP, but not until after several
unsuccessful attempts.
What I would like to do is prevent logging in via Port 25 (I use a
different port for signing into the server), hopefully stopping these
antics in their track.
Can someone suggest how I can do this?
TIA,
Jerry
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