dovecot - Nov 2018 - determine why mail clients download mails 2nd time

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 <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)*
and maybe

*Nov 12 09:27:59 s1 dovecot: imap(artur at firmastanaszek.pl
<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 <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.
-- 

*Pozdrawiam / Best Regards*
*Piotr Bracha*
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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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pon., 26 lis 2018 o 09:25 Aki Tuomi <aki.tuomi at open-xchange.com>
napisa?(a):
>
> 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 <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.
>
Thank you for answer. Strange thing, because it is owned by vmail:vmail,
please take a look:
*drwxrwx--- 46 vmail vmail  4096 Aug 22 11:52 vmail*
I have /var/vmail directory binded to /var/vmail on secondary disk. Maybe
from some reason entry in /etc/fstab crashed? It happened after restart
server.
> and maybe
>
> *Nov 12 09:27:59 s1 dovecot: imap(artur at firmastanaszek.pl
> <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
> <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.
>
Honestly I am not sure that this was the reason of downloading emails
again. I am more sure that the first error "Permission denied" could
do
this.
Do you know what could cause above error "Error: corrupted index cache
file" and how to fix it? It was happened suddenly without any changes in
dovecot configuration
> --
>
> *Pozdrawiam / Best Regards *
> *Piotr Bracha*
>
> Also which version of dovecot is this?
>
root at s1:/var# dovecot --version
2.2.22 (fe789d2)
> Aki
>

-- 

*Pozdrawiam / Best Regards*
*Piotr Bracha*
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