think it is wise for people to set such limits to 1, but I've seen several
people do it.
It catches the problem where spammer abuse gateways/proxies and
the first command that comes in is something like POST followed
by a perfectly valid SMTP conversation. This happens (in out case happend ;)
frequently with open HTTP proxies.
Can you give me some example domains, so I can do an experiment?
moebius.space.net does it.
You better not send a XXXX or POST command as it will immediately cause
the sending IP to be blacklisted.
[ no, this is not an easy way for anyone to cause a server to be
blacklisted, as I know of no way a message can influence the
SMTP server to send commands like "POST" or "XXXX". And if the
MTA can be tricked to send it, it is probably worth being listed. ;)
If the IP the MTA runs on can be tricked to open a SMTP connection
and send the commands I don't want to talk to it either. ]
\Maex
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