Re: [exim] exim-4.63 - Duplicate delivery bug

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Auteur: Will Tatam
Date:  
À: Tom Kistner
CC: exim-users
Sujet: Re: [exim] exim-4.63 - Duplicate delivery bug
Tom Kistner wrote:
> Will Tatam schrieb:
>
>> Server A sends message to server B, Server B queues message for delivery
>> but without logging. Server A records
>>
>> defer (-18): Remote host eric.netmindz.net [78.129.143.156] closed
>> connection in response to end of data
>
>
> I'm not sure what you mean with "without logging". The effect of "double
> deliveries" can only happen if the receiving server hangs for a longer
> time (in the range of several minutes) after the sending server has
> finished sending body data. The sending server will then give up on the
> message. When the receiving server finally accepts the message, it sends
> its success code to a dead channel - the sender is already gone, and
> will retry the message.
>
> /tom
>


By "without logging" i mean that exim was not writing any further data
to the log file due to the fact that it had hit the maximum log size.
Any "hang" would only have been caused by exim waiting for the data to
be written to the log file as server B is not doing any sender
verification, spam scanning etc and is set to queue only over a load avg
of 3

Will

--
Will Tatam

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