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On Wed, 24 Jun 2009, jean-Noël Chardron wrote:
I read a previous post about the duplicate messages : http://www.dovecot.org/list/dovecot/2007-March/021085.html But I do not understand if this feature exists and how to activate Some explanations or documentation would be welcome.
There is no such feature.
"When a same message (same message-id) is to be delivered twice into the same mailbox, it is delivered twice while I think that the second one should be discarded."
The assumption same message-id == same message is nice, but may fail. Therefore it is problematic to impose this.
IMHO, the Sieve RFC refers to file one message multiple times into the same folder in the same run, not when the same message arrives two or more times.
E.g. a script like:
" fileinto "INBOX";
fileinto "INBOX";
"
shallt not file the message twice into INBOX.
When the same message (aka same message-id) arrives two or more times, it is really not the same, because at least the headers differ, usually. E.g. if you compare the message byte-per-byte they differ.
For instance I have a mailing list that sends its message directly to the sender and to the subscribers in two different runs. So I get it twice, but once without the "list-id" and once with, so I can filter.
Bye,
Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux)
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