[Dovecot] Empty/corrupt mail leads to duplicate delivery

[Timo Sirainen]

On Mon, 2008-10-27 at 20:12 +0100, Marc Herbrechter wrote:
> Hi,
> 
> when the attached mail was stored in a maildir, fetching mail via POP3
> lead to multiple delivery of mails in that maildir to the client
> (Outlook). I replaced the domain with dots.

Sounds like an Outlook bug. The only thing Dovecot could do wrong is to
provide duplicate UIDL for the messages. You could verify this yourself
by giving UIDL command and seeing if there are duplicates. But I highly
doubt that, because you're using:

>   pop3_uidl_format = %08Xu%08Xv

Which means your UIDL is based on message UID and UIDVALIDITY. Neither
depend on message contents.

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