blocking by return path

enginaar

Verified User
Joined
May 20, 2004
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146
Location
Turkiye
Hello,

Is there a way to block all incoming mails by the content of return-path. I've too many spams coming right now and all of them has the return-path like "<>"

I think the return-path must not be empty by the way. Would it be loss if I block all incoming mails with the return paths empty.

Thanks all.
 

nobaloney

NoBaloney Internet Svcs - In Memoriam †
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Jun 16, 2003
Messages
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California
You'd eventually end up in the rfc-ignorant list. I don't know if anyone blocks based on that list.

The reason the RFCs require that you accept all emails coming from the return path of <> is that Mailer Daemons use that to send delay and undeliverable messages back to your server.

Jeff
 

nobaloney

NoBaloney Internet Svcs - In Memoriam †
Joined
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Messages
26,119
Location
California
Yes, through custom configuration of exim.conf. Custom setups using exim.conf are beyond the scope of this forum.

Jeff
 
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