> On Wed, 1 Feb 2023, Wietse Venema wrote: > > > post...@fongaboo.com: > >> Jan 31 20:06:15 h6lix postfix/smtp[6552]: 7128C4089C: > >> to=<outsideaddr...@swling.net>, relay=50.75.172.140[50.75.172.140]:25, > >> delay=2.5, delays=0.64/0.01/1.6/0.23, dsn=4.3.0, status=deferred > >> (host 50.75.172.140[50.75.172.140] said: 451 4.3.0 Error: queue > >> file write error (in reply to end of DATA command)) > > > > You need to look in the logs on 50.75.172.140. The Postfix SMTP > > server returns a generic "write error" without revealing details > > in its responses to an SMTP client. > > > > Wietse > > > post...@fongaboo.com: > > So those log snippets are from the logs on 50.75.172.140 (my postfix > server). What more might I be looking for?
Start here: http://www.postfix.org/DEBUG_README.html#logging DO NOT turn on debug logging. Postfix will log a warning or fatal error, and in most cases that will be sufficient. Wietse