Re: [CentOS] my spammer list

On 30.3.2012 05:26, Nataraj wrote:

The way that I finally got rid of all the residual spam that makes it through greylisting, SPF, spamassassin, clamav is to handout unique mail addresses and use black/whitelists. So for example if I assign an email address for incoming mail from a mailing list and then setup a whitelist entry that only allows that address to receive email from the mailservers that serve that mailing list and then blacklist all other incoming mail to that address it is very effective.

But how to tell which mailservers are "serving" that mailing list? That's the thing SPF or similar is supposed to do, isn't it? Don't tell me you are looking at the MX Records! Incoming and Outgoing Mailservers are not the same necessarily.