The mailing list for listmasters using Sympa

["Patrick von der Hagen" <address@concealed>]

Am Donnerstag, den 08.11.2007, 03:05 +0100 schrieb Fabio Napoleoni:
[...]
> My question is why those messages are truncated? Is it bouncequeue
> fault, postfix fault or some other host fault?
I consider it to be normal that some remote server bounces and truncates
a message. Even if it did not, you might receive a bounce which can not
be matched to an address in your subscriber-table. If "A" is subscribed,
"A" forwards to "B" later and "B" is broken (over quota, deleted, etc.),
you will receive a bounce that "B" failed, but likely without any way to
automatically recognize that "A" is the culprit.

To handle those cases you have no real way but activating VERP. Given
your list-size, it is probably unwise to activate it for all
subscribers, but if that list is used frequently a small percentage
should be no problem. Of course it takes longer to identify all broken
subscribers, but since VERP increases the number of individual messages,
I'd just start with something as low as 2%, watch it and decide later
wheter or not your system can handle 5% oder even 10%.


-- 
CU,
   Patrick.

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