var sidebar_align = 'right';
var content_container_margin = parseInt('350px');
var sidebar_width = parseInt('330px');
Has anyone heard about a way of filtering spam with reverse DNS (like AOL)? Basically, if the email does not have proper reverse DNS, it will be rejected or dropped/deleted. I heard that this is the best way to eliminate spam.
What mail server are you using? In postfix, you do something like:
smtpd_client_restrictions = reject_unknown_client
The docs say:
Reject the request when the client IP address has no PTR (address to name) record in the DNS, or when the PTR record does not have a matching A (name to address) record.
Thank you for the reply. We are using qmail and exim. I hope they have similar features as postfix.
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