huge mail going throw my mail server how to protect

[Patrick Lists]

On 04/06/2012 06:28 AM, Rafiqul Islam wrote:
> Please help me how to stop this spamming frequently blocked from several
> public network

 From the other posts I take it your postfix server is not properly 
configured and is an open relay.

Steps to fix:

1) realize that your postfix mail server is an *open* relay (=BAD!). So 
you did not configure the postfix server in the proper way

2) stop your mail server right now

3) do NOT turn the mail server on until you know reasonably sure that 
you have fixed the problem. You can test your mailserver here: 
http://www.abuse.net/relay.html

4) go to postfix.org and read the documentation and properly configure 
your mail server to NOT be an open relay. If you can't find how to do it 
then read all the information again and again and perhaps use Google

5) if you can not figure out how to fix this problem then either hire a 
consultant who can fix it for you or ask on the postfix mailing list

I hope you realize that your IP address & domain may now be considered a 
spam origin in several spam block lists and that a lot of mail hosts 
will not accept mail from you even if you solve the open relay problem 
with your mail server.

Next time you want to activate a service it is probably a good idea to 
spend more time on understanding how the service works and what the 
proper configuration is...

Regards,
Patrick