From: Peter Matulis (petermatulisyahoo.ca)
Date: Thu Dec 07 2006 - 09:06:52 CST

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

--- Nilesh Shastrakar <nileshshastrakaryahoo.com> wrote:

> Thanks all for replying,
>
> I agree with your comments but which rules should I use for the
> blocking spam.
> or which is good software ( Amavis or MailScanner ) or is there
> better than this.
>
> Regards
> Nilesh.
>
>
> "Sheldon T. Hall" <pftandem.artell.net> wrote: Nilesh Shastrakar
>
> > I have installed Postfix 2.3 server on Centos 4.4 with SASL
> > Authentications it working fine.
> > but now a days I am getting lots of SPAM and Virus emails.
> > Could any one suggest me add on softwares for Postfix so I
> > can block Spam and Virus emails.
> > I have tried MailScanner and Sendmail in that case
> > MailScanner was eating lots of CPU and Memory,
> > I need something lite version and stable and should not eat
> > more memory.
>
> You can block the vast majority of spam, and many viruses, with the
> facilities Postfix provides, without addig anything at all. Once you
> have
> implemented a good set of Postfix rules, ones suited to your site and
> its
> policies, _then_ analyse what’s getting through and figure out the
> tool to
> block it.

1. Set up decent Postfix rules
2. Make sure you include recipient validation in the above
3. Add greylisting

This should reduce your spam by 85%. No anti-spam software added yet.
You might want to tell us your environment (personal, small company,
big company, etc). If you have few users then you can add sender
verification (this does not work if you are using some kind of mail
proxying). This should decrease spam by another 10%.

__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]