[afnog] mail blacklisted

[Chris Wilson]

Hi Kwas,

On Tue, 18 Jun 2013, Kwas Lee wrote:

> My server has been blacklisted to UCEPROTECTL1,BACKSCATTERER,SORBS-SPAM 
> and MAILSPIKE-BL, am using atmail7 installed on centos 5.5 , the 
> spamassasing is working fine.

The only way to solve the problem is to find out why you've been 
blacklisted and fix it. Most likely your mail server is being used to 
relay spam, regardless of your spamassassin which will never catch 100% of 
it, or you are allowing outbound SMTP from your network and one of your 
users in infected.

I suggest you closely examine the logs of your mail server to identify 
spam messages being sent through it. The blacklists should be able to 
provide the date and time of a spam message that caused you to be 
blacklisted, which may help you if the spam has stopped.

I recommend that you check that users on your network are NOT allowed to 
send email directly by SMTP out to the internet, only through your mail 
server, and that this is enforced by your firewall.

Cheers, Chris.
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