[CentOS] CentOS mailserver and spam filter setup ideas
craigwhite at azapple.com
Wed Nov 30 17:26:11 UTC 2005
On Wed, 2005-11-30 at 08:33 -0800, Robert wrote:
> } Ugh.. qmail. I'll refrain from spitting up too much hate about the DJB
> } way of doing things here and just say "it's a functional product, but
> } his way is not the right way"
> } There are some excellent mail setup guides located at
> } http://www.hughesjr.com/content/category/1/14/30/Guides
> } They're quite good, and cover everything from intial setup to webmail
> } to filtering. Well worth the read.
> } Jim Perrin
> thanks for input!!!
> having built many mailservers i will be ok in general yet what i am really
> looking for now is how is everyone here filtering "spam in languages other
> than English"... most of the spam i get is in Spanish.
- Google offers to translate pages with a sublink on all found items
that aren't your primary languages...at least it does for me.
- spam is spam and is not about language. If you want more aggressive
spam filtering, perhaps you should investigate a better wrapper (I use
MailScanner but my guess is that mime-defang and amvaisd-new are quite
capable), implementing more spam features (DCC, pyzor, DNSBL, etc.)
- greylisting (http://www.greylisting.org)
I use postfix, greylisting, MailScanner with spamassassin & clamav, and
sieve filters (cyrus-imapd) and get pretty good control. Probably the
most significant things I do is to have a fairly comprehensive
smtp_helo/smtp_sender checks in postfix and greylisting which gets all
the low hanging fruit so I am not sucking massive cpu power on the rest
of the checks mandated by MailScanner
> i am having a hard time finding it googling (other than Bayesian filters)
> and i just need some searching help or direction to find so i can study up
> and thing is, ummmm im willing to use sendmail yet i want my customers to be
> able to admin their own virtual mailservers with a web interface... what is
> everyone using there??? sendmail and ??? or qmail and ???
on servers that provide smtp for domains...probably 60% sendmail, 35%
postfix, 5% other - just a wild guess - no empirical data whatsoever.
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