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

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