1999-03-02 09:44:33 Received from CALLER@test.ex U=CALLER P=local S=sss 1999-03-02 09:44:33 fail.route@unknown.domain R=fail_remote_domains: unrouteable mail domain "unknown.domain" 1999-03-02 09:44:33 routing failed for fail.direct@test.ex: Unrouteable address 1999-03-02 09:44:33 defer@test.ex R=defer defer (-1): don't do this yet 1999-03-02 09:44:33 ok@test.ex: succeed transport succeeded 1999-03-02 09:44:33 H=127.0.0.1 [127.0.0.1] SMTP error from remote mail server after RCPT TO:: 550 Recipient refused 1999-03-02 09:44:33 fail.transport@test.ex R=fail_transport T=fail H=127.0.0.1 [127.0.0.1]: SMTP error from remote mail server after RCPT TO:: 550 Recipient refused