Enjoy an ad free experience by logging in. Not a member yet? Register.
Results 1 to 1 of 1
02-04-2012, 09:31 AM #1
- Join Date
- Jan 2012
- Thanked 0 Times in 0 Posts
Can Postfix rejecting sender if no matching MX record?
I have a stock install of Postfix from my Ubuntu repository.
When I get spam coming consistently from a certain ISP, I block its IP range. I would rather not do this, but technical people under WHOIS don't take action against my complaints.
I am wondering if there is a way to configure Postfix to do a MX lookup on the sender during the MTA transaction, to match the sending SMTP's server IP address against the one MX record for the mail thats coming from?
Sender 220.127.116.11 (firstname.lastname@example.org) > My Server
My Server > MX lookup example.com
If MX for example.com contains 18.104.22.168, accept mail, else reject.