What normally causes that error? I have actually been working on trying to
resolve a number of these errors on my exim server (4.80.1 build).
I have a server that sends maybe 1 million messages a day to exim. Out of
1 million maybe 5 - 6 of the smtp protocol sync errors occur.
I have done packet captures and part way through the DATA part exim seems
to start processing the message, even though the end of message has not
been sent. The remote server continues sending data and then the error
occurs.
Robert G.
On Wed, Oct 23, 2013 at 10:17 AM, Phil Pennock <pdp@???> wrote:
> On 2013-10-22 at 10:19 -0600, The Doctor wrote:
> > Just noticed an ugly incident.
> >
> > Looking at my http://www.nk.ca/eximstats.html
> >
> > This is a high amount of SMTP procotol sychronization error
> > happening.
> >
> > This was not the case in 4.80.1 .
> >
> > Can we have a look at this please?
>
> Just knowing those errors are there tells us too little to be a basis of
> investigation. However, if you look in your rejectlog files for lines
> containing "SMTP protocol synchronization error" then you will have more
> data to go on and you can tell us what Exim thinks is happening.
>
> You separately seem to have an "internal problem in lists router" which
> is spamming your stats; is this new with the RC, or something that has
> just been around in your setup for a while, unresolved? When did it
> start, according to your logs? What is your "lists" Router configured
> as?
>
> Regards,
> -Phil
>
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