problem email in Free BSD

[nhathuylk]

I have a mail system running on Free BSD .. However, my mail system is a problem of spam email .. So please just tell me how to block emails if packet email are checked that contains a character or a word ? when receiving mail. if check in the mail that has contain a character or word from the set predefined, will not receive mail. please help me? thanks

 

[brd@]

Try running an open relay test like this one: Abuse.net Open Relay Test.

 

[nhathuylk]

can you say more about this? I read that really do not understand?

 

[phospher]

At least tell us what mail server your running...

 

[DutchDaemon]

And also tell us what the actual problem is. Are you receiving spam, or are you the source of spam?

 

[nhathuylk]

@ MOD :spam mail often change the source address, so I can not determine the exact address of spam mail. just know it is a common point is sent via a website address http://xxx.ru
@phospher : my mail system runs on FreeBSD is installed postfix

 

[mix_room]

So you are receiving spam? Someone is sending spam to you.

You need a spam filter. Either one in your mail-reader or on you mail-server.

Take a look at graylisting, which might help you.
http://www.freebsddiary.org/pf.php
http://en.wikipedia.org/wiki/Greylisting