Re: [exim] Smtp not possible from some clients

On 2014-12-05 11:53, matthiasmueller07@??? wrote:
> Hello Tom,
Hi,

> I do not have access to the web application but I tried the debuging
> option now and send you the output. I also make an external check and
> foud out that the connection time is very high. Maybe this is the
> problem but I do not understand this because the system is reachable
> as normal.
> SMTP Connection Time 5.912 seconds
> SMTP Transaction Time 8.440 seconds
These numbers are quite high, yes. The web application probably hits a
timeout
before the connection is established.

This attempt was made from the web application's host?
Did you also try a manual handshake test with telnet? Would be
interesting to
know at which stage these long waits occur.
What about Wireshark? Were you able to analyze a network trace?

> Exim version 4.82 uid=0 gid=0 pid=4897 D=fbb95cfd
[...]
> 4901 doing ident callback
> 4901 ident connection to x.x.x.x failed: Connection timed out
You probably should disable ident lookups, I don't see why anyone would
need
those today and by doing so you get rid of a few seconds of waiting.
What's rfc1413_query_timeout set to in your configuration? Maybe this
explains
the ~6 seconds connection time.

Apart from that I cannot find any issues in this debug trace.

Bye,
Tom.