>For whatever reason, I thought that when postfix rejects an email in the >smtpd_recipient_restrictions it sends an email to sender notifying them = >that >their message got rejected for whatever reason.
no, their is no new msg generated for envelope rejects. The msg is not received, and it's the responsibility of the sending MTA to handle the 4xx/5xx reject. >Apparently this is not happening on my box, is this something that I can >enable somewhere ? no >Is it recommended ? no postfix will only generate a new msg back to the envelope sender when postfix has accepted (ie, responsibility for delivering) a msg but cannot deliver it. SMTPD rejects are clearly another situation. >I would like to have this measure as it is a good failsafe measure for = >False >positives as people sending the email would know that their mail didn't = >go >through and find another to send it, instead of assuming that their = >email go >to its final destination. If people's mailsystems don't handle basic SMTP/RFC 4xx/5xx rejects correctly, it's their problem, not yours. Len
