On Thu, Sep 12, 2013 at 10:47:24AM -0400, Roman Gelfand wrote:
> Sep 12 10:38:50 mail1 postfix/smtp[30325]: 0208544124:
> to=<dkfsdklfd...@marketplace.amazon.com>,
> relay=retail-smtp-in.amazon.com[176.32.98.133]:25, delay=0.26,
> delays=0/0/0.1/0.15, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as
> 52D9D9EC1AE)
>
> Please, see below... The whole turnaround was roughly a second. What
> I meant by "Sending mail into Postfix" is chilkat application takes 13
> seconds to send it.
In fact delivery takes only 0.25 seconds. So "chilkat" is not
reporting the time spent talking to Postfix. Debug "chilkat", not
Postfix. Tcpdump is your friend.
On Thu, Sep 12, 2013 at 10:52:46AM -0400, Roman Gelfand wrote:
> > To determine whether there is a delay, use "telnet" to connect from
> > 192.168.0.86 to port 25 on the MTA, and see how long you have to wait
> > until the MTA responds with a "220 ..." banner.
>
> you are right. The telnet connection from that machine was instantaneous.
In that case the "before banner" time to add to the "0.25s" seconds
above is essentially zero. Postfix is not the source of the 13s time
reported by the application.
Without further evidence of something slow in Postfix, this thread
is done.
If you want to pursue this further, use "tcpdump" and also the Perl
script I posted to postfix-devel.
--
Viktor.
