Re: OT: Testing SMTP connections

On Jul 17, 10:31 pm, Catman <cat...@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
We have an application at work that receives email

well, "fail" already. Unless by "application" you mean "email client".

We have an ongoing issue where exim reports that it has suffered a
timeout after connection to this app, and we're having real trouble
working out where this is.

If we run nagios SMTP check on the machine hosting the receiving app,
connecting to the receiving app, it sometimes reports timeouts. *But* if
you telnet to port 8825 (the listening port in this case) at the same
time the nagios checking code is reporting a timeout, it all works fine.

So that's not much use.

There are a number of apps out there that will send large volumes of
mail but that's not really practical for this app, plus not really what
I'm after as mail *throughput* is not at issue.

What I really want is something that will open multiple sequential
connections to port 8825 and report if it doesn't get an answer with n
milliseconds.

Any of you brain boxes have any suggestions?

rethink your architecture.

--
d.

.

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