Re: [exim] "protocol violation: synchronization error" from …

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Autor: Tony Finch
Data:  
A: Toralf Lund
CC: Exim Mailing List
Assumpte: Re: [exim] "protocol violation: synchronization error" from our server during callout verify by another
On Wed, 7 Jun 2006, Toralf Lund wrote:

> 2006-06-07 13:39:12 ident connection to 192.168.0.186 timed out
> I then disabled all "ident" connections via
> rfc1413_query_timeout = 0s
> and was actually able to deliver my message! So the synchronisation
> problem appears to be a symptom rather than the real issue - maybe it's
> just a result of waiting so long for the ident connection.


When the callout runs out of time - by default the same timeout as an
ident callback - Exim terminates the connection with a QUIT, which
in this situation it will send before the other end's greeting banner.
This explains the sync error message.

Tony.
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