Open relays and such

[Daniel C.]

On 5/18/07, Stuart Jansen <sjansen at buscaluz.org> wrote:
> Better yet, if you know raw SMTP, you could telnet into the other guys
> server and watch for error messages.

I highly recommend memorizing the POP and SMTP protocols.  I've
forgotten them in the past few years since I haven't been
administering servers (administrating? anyway I haven't been a server
admin) but when I was, having the protocols memorized helped immensely
when troubleshooting mail problems.  And when I say "troubleshooting
mail problems' what I really mean is "convincing customers that the
problem is not with our server."

They're really quite simple.  You could even write up a cheat sheet to
help out until you've fully committed them to memory.

Dan