Re: [Exim] How unique are exim queue msg IDs?

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Συντάκτης: Nigel Metheringham
Ημερομηνία:  
Προς: Jeffrey Goldberg
Υ/ο: The Flying Hamster, exim-users
Αντικείμενο: Re: [Exim] How unique are exim queue msg IDs?
jeffrey+lists@??? said:
> Now that I think about it, I actually don't know how exim actually
> enforces unique IDs.


The message id includes the timestamp, the process id, an incrementing 
"sequence in this process in this timestamp" and a node id.  This will 
be unique on a queue directory as long as:-
  1. Your clock increases (ie does not jump around and reuse timestamps)
  2. You have only one exim machine working on a queue directory
     OR each machine's exim processes have a different node id


Details of this are given in the accept.c source file in extreme detail
:-)

    Nigel.


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[ Nigel Metheringham                  Nigel.Metheringham@??? ]
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