post...@ptld.com:
> postfix/smtpd[8568]: warning: hostname zg-0520a-211.stretchoid.com does
> not resolve to address 192.241.205.222: Name or service not known
> postfix/smtpd[8568]: connect from unknown[192.241.205.222]
> postfix/smtpd[8568]: lost connection after UNKNOWN from
> unknown[192.241.205.222]
> postfix/smtpd[8568]: disconnect from unknown[192.241.205.222]
> unknown=0/1 commands=0/1
>
> postfix/smtpd[8585]: warning: haproxy read: unexpected EOF
> postfix/smtpd[8585]: connect from unknown[unknown]
> postfix/smtpd[8585]: disconnect from unknown[unknown] commands=0/0
>
>
> I would like a better understanding of what is happening when the logs
> include "warning: haproxy read:". Is that generated by postfix based on
> what? Or is it generated by haproxy and postfix just pass thru displays
> it?
As documented HAPPROXY sends one message with the protocol and
remote/local endpoint information. If HAPROXY sends anything else
then that would be a HAPROXY bug.
Wietse
> Yes the server sits behind haproxy, but what has me curious is on most
> log entries like the first one above there is no mention of haproxy, so
> why is it on the second log entry? Whats the difference?
>
> FYI: -o smtpd_upstream_proxy_protocol=haproxy is set under submission.
>
