Hi,
This is my first post in this list, i am from Brazil and I apologize
for my language errors, my problem is the following:
I have a qmail server with Vpopmail and Spamdyke intercepting SMTP
connections, most of my customers use SMTP authentication via port 587
(relaying through port 25 is disabled, even with authentication) and
POP3, actually i am having troubles with spammers that steal some email
address and passwords from my customers and use these credentials to
send large amounts of spam through my mail server. When i started to use
the port 587 these problems stopped for a period of time, but now i
think the spammers are already using this port too. I would like to know
if spamdyke can block relay if the client is trying to send a lot of
email in a small period of time or something else that can ease this
problem.
Thanks.
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