Dovecot 2.2.16: disappearing messages, mismatched summaries, duplicated messages, excessive full re-downloads

[Steffen Kaiser]

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On Thu, 23 Apr 2015, David Gessel wrote:

> I'm inclined to believe, as trivial as it may be to enumerate, that:
>
> Something is triggering dovecot to believe the indexes need to be rebuilt.
> When checking mail during the rebuild, clients get confused by UIDs in transition.
>
> I would think that sdbox would alleviate these issues, no?

The real problem is that you do not know _why_ "Something is triggering 
dovecot to believe the indexes need to be rebuilt".

This is the same for sdbox and mdbox, IMHO.

That's why I asked about if some external process is trying to change the 
mail storage. Is there something except Dovecot that changes the mtime of 
the directories "new", "cur" or Maildir base? Do you deliver messages 
without Dovecot LDA/LMTP? Do you store different information in the 
Maildir? Do you (not) have separate mail storage and user home 
directories? Do you run a virus checker on file system level?

Do you run two Dovecot instances on the same server, maybe as left over 
from some testing or crash?

- -- 
Steffen Kaiser
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