Jan Stanik writes:
Hi all,
I need to reject unknown 'local' users on my mx backup server (with
no local delivery). Spamers try to send spam to mx backup servers
directly, as they assume that those servers do not have as good
protection as primary mailservers.
They are right ;-)
Do yo have any suggestion how to implement this check in courier?
Remove your domain from esmtpacceptmailfor file, and create a different alias for the domain in esmtproutes; then create an alias for each valid user, for example:
[EMAIL PROTECTED]: [EMAIL PROTECTED]
pgpWutlAdz0jA.pgp
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