On Thu, Dec 03, 2020 at 05:34:45PM -0300, Sergio Belkin wrote:
> Dec 2 23:53:09 muteriver postfix/smtp[28063]: ED1CF1813C56F: to=<
> apere...@another-example.com>, relay=none, delay=5.9, delays=0.17/0/5.8/0,
> dsn=5.4.4, status=bounced (Host or domain name not found. Name service
> error for name=another-example.com.mail.protection.outlook.com type=AAAA:
> Host found but no data record of requested type)
This was not a transient error, an authoritative "no such host or
address" response was received as is seen from the hard "5.4.4" DSN.
https://tools.ietf.org/html/rfc3463#section-3.5
With transient DNS errors, the DSN would have been 4.4.4. You should
also note the "status=bounced". The message was "returned to sender,
address unknown".
> Dec 2 23:53:10 muteriver postfix/qmgr[1528]: ED1CF1813C56F: removed
The original message was therefore removed.
--
Viktor.
