Jesper Dybdal:
> On 2019-09-17 13:02, Wietse Venema wrote:
> > Jesper Dybdal:
> >> Can "Error: queue file write error" mean anything other than a problem
> >> with the queue file?
> > Yes. LOOK IN THE LOGS. Postfix will not reveal internal error details
> > in its responses to random SMTP clients.
>
> You're right: I had somehow overlooked"timeout talking to proxy
> 127.0.0.1:10024", which undoubtedly is the problem.? Port 10024 is the
> pre-queue amavisd-new.
>
> Now I just need to figure out why amavis times out.
Perhaps amavisd-new is doing slow DNS lookups?
The Postfix-side time limit is covered by smtpd_proxy_timeout which
has a generous default of 100s. Increasing this may result in remote
SMTP client timeouts and duplicate deliveries as the client retries.
Wietse
