On 1/1/23 19:01, Wietse Venema wrote: > trading fours: >> I am seeing the subjected error for a small percentage of messages, and >> then those message stay in the deferred queue. >> >> from the log: >> postfix/local[1124]: warning: unexpected protocol delivery_request_protocol >> from private/bounce socket (expected: delivery_status_protocol) > > You changed the 'bounce' service entry in master.cf, and replaced > the bounce program name with the name of some program that does not > implement the delivery_status service protosol. Don't do that. > > Also, you are receiving mail, presumably via SMTP, and then bouncing > it. Don't do that.
Is there any reason for mail received on port 25 to be bounced? Or should bouncing be reserved for authenticated mail submission? -- Sincerely, Demi Marie Obenour (she/her/hers)
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