determine why mail clients download mails 2nd time

[Aki Tuomi]

On 26.11.2018 10.01, Poliman - Serwis wrote:
> I have strange problem. In last Friday I had a problem with dovecot.
> It didn't see directories with mailboxes in /var/vmail. Somehow it
> crashed because probably two things (a lot of this type of lines in
> mail.err file):
> /Nov 23 07:05:02 s1 dovecot: lda(poli at poli.li <mailto:poli at poli.li>):
> Error: User initialization failed: Initializing mail storage from
> mail_location setting failed: mkdir(/var/vmail/poli.li/poli/Maildir
> <http://poli.li/poli/Maildir>) failed: Permission denied
> (euid=5000(vmail) egid=5000(vmail) missing +w perm: /var/vmail, dir
> owned by 0:0 mode=0755)/

/var/vmail is not owned by vmail:vmail, which I think it should be in
your configuration.

> and maybe /
> /
> //
> /Nov 12 09:27:59 s1 dovecot: imap(artur at firmastanaszek.pl
> <mailto:artur at firmastanaszek.pl>): Error: Corrupted index cache file
> /var/vmail/firmastanaszek.pl/artur/Maildir/dovecot.index.cache
> <http://firmastanaszek.pl/artur/Maildir/dovecot.index.cache>: Broken
> MIME parts for mail UID 559 in mailbox INBOX: Cached MIME parts don't
> match message during parsing: Cached header size mismatch (parts=)
> Nov 12 09:27:59 s1 dovecot: imap(artur at firmastanaszek.pl
> <mailto:artur at firmastanaszek.pl>): Error:
> unlink(/var/vmail/firmastanaszek.pl/artur/Maildir/dovecot.index.cache
> <http://firmastanaszek.pl/artur/Maildir/dovecot.index.cache>) failed:
> No such file or directory (in mail-cache.c:28)/
>
> and after this event probably all mailboxes download again all emails
> from 1.11 to 22.11. They were duplicated in mail clients.

Unlikely that this causes all mailboxes to download all mails.

> -- 
> /Pozdrawiam / Best Regards
> /
> /Piotr Bracha/

Also which version of dovecot is this?

Aki

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