Hi list,
I use a unique email address (alias) for every web(service)
registration. I would like to limit or even block spam sent to these
unique addresses. I glanced through the Postfix book but couldn't find
an answer.
Example of what should be blocked:
From: "Twitter System" <twit...@twitter.com> <== faked
To: <webmas...@mydomain.org>
Example of what should be accepted:
From: "Twitter System" <twit...@twitter.com> <== faked
To: <twe...@mydomain.org>
twitter.com and twe...@mydomain.org are the correct combination so
accept the email.
So I'm trying to enforce that only a combination of a certain From: ...
(the TLD) and a certain To: ... (the full email address) that was
specifically used to register with the TLD in From: ... is accepted,
otherwise REJECT.
Hope this makes sense. Anyone know if this is possible and how I can
implement this? Pointers most welcome and appreciated.
Thanks and regards,
Patrick