Recently i'm seeing a few messages deferred with status=deferred (bounce or trace service failure)
instead of status=deferred (host .. said: 450 ...) from the logs: postfix/smtp[272605]: warning: unexpected protocol delivery_request_protocol from private/bounce socket (expected: delivery_status_protocol) postfix/smtp[272605]: warning: read private/bounce socket: Application error postfix/smtp[272605]: status=deferred (bounce or trace service failure) This started right after upgrading the mx server (from ubuntu 20 focal to ubuntu 22 jammy, postconf mail_version now reports 3.6.4 (not sure before). But i have another mx server with similar config, on jammy and 3.6.4 for a long time. I don't have anything special in the configuration re deferred or bounce. Why would the status be "bounce or trace service failure" as opposed to the usual "host said: 450..." reply from the remote server? _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org