On 3/11/2014 3:09 PM, Eric Shubert wrote:
On 03/11/2014 11:53 AM, Scot Needy wrote:
Yea,
I guess that was my original question when I asked about NAT.
Forgive me if I ask a dumb question but..
I thought that the source TCP address wasn’t an issue because much of
the spam prevention will look at mail headers not just the TCP source
IP of the last relay before mail got to qmail.
Depends on what you consider to be "much of the spam prevention".
There's not really much in the headers that spamdyke or spamassassin
relies on. Source IP address is probably the biggest single factor
that spamdyke uses.
You really need to get QMT on the perimeter (or behind a simple NAT)
in order to have decent anti-spam effectiveness.
I do not wish to hiJack a thread ... but would like to say that a
comprehensive "best practice" suggestion list would be wonderful.
I am presently trying to 'knuckel down' on the spam problem.
thanks
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