On 18 Mar 2021, at 6:36, Burn Zero wrote:
Hi,
I have a relay server named smtprelayservername which accepts emails
from
various clients. So one of the clients complain that they receive this
error while sending email:
Error 4.4.2 <smtprelayservername> Error: timeout exceeded
But I have checked in the relay server smtprelayservername and no such
timeout issue is logged.
That implies that the timeout is on the sending side. What is logged on
your server at the same time?
Please guide me how to tackle such timeout issues.
1. Make your server respond faster.
2. Have your client stop timing out too fast.
Sorry to be so vague, but without more details (see the last section of
the Postfix DEBUG_README for what that means) no one here can do
anything more than guess at the root cause.
PS: the problematic client sends 1000's of emails and are delivered
properly to this relay server but the timeout issue occurs only
sometime
and is not reproducible.
That's why logs are essential. They should have something logged that
indicates what stage of the transaction timed out and what the relevant
details of the message & envelope were. You should have something logged
about the transaction failing (i.e. at minimum, a disconnect event.)
Together, those can help you pinpoint what part of the SMTP transaction
is too slow for your client.
--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire
