Man, they'll try anything to hack your system...

[Python]

On Sat, 2006-01-28 at 15:24 -0500, Dan Jenkins wrote:
> What experience have folk had tightening restrictions, like lack of
> MX 
> or A or mis-matched MX/PTR pair?
> Does it still cause a lot of false rejections?

A huge percentage of my spam comes from IP addresses with no reverse
lookup.  A good chunk of the remaining spam comes from roadrunner
addresses, presumably rooted zombies.  In the past I got into trouble
rejecting senders without a PTR record, so even though it would clearly
be effective, I fear it would still create some false positives.

postfix/amavisd/clam are doing a good job of filtering spam, phishing
and viruses, though I have a small number of email users.

spambayes provides an effective client spam filter (spambayes.org).  The
Outlook plugin is easy for Windows/Outlook folks.  For everyone else,
you'd probably run it as an imap/pop proxy.  (I run it as a pop proxy.)
Getting it working for those people may be more of a tech support burden
than you want to bear.


-- 
Lloyd Kvam
Venix Corp