Does Exim apply RBL checks to error messages, those with an envelope sender of “<>” ?
A0817: Yes, it does, because the RBL check happens immediately on connection, before any commands are passed, and so therefore before it even knows that the envelope sender is “<>“. Q0818: I want to be able to set up a list, similar to sender_reject_recipients, but with a user-defined message. I believe I have to use a director for this. A0818: You can do this using the prohibition_message mechanism (see the section entitled “Customizing prohibition messages” in the manual). This avoids having to use a director, and therefore doesn’t require you to let the message into your host at all.
Related Questions
- Why does Exim bounce messages without even attempting delivery, giving the error retry time not reached for any host after a long failure period?
- Does Exim apply RBL checks to error messages, those with an envelope sender of "<>" ?
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