Re: [Dovecot] Mail lost - maybe a bug???

Hello Timo and Urban, and thank you for the very quick reply

I have already thought about these things: I have already disabled
mailbox deletion from POP3 clients, that actually just leave the
messages on the server

however, this time noone of the 4 recipients got the email - so it is
really strange that all che clients deleted the same message and left
all the others

we can notice this only a few days after the issue, because customers
send us a reminder forwarding the lost mail

Il giorno 17/nov/11, alle ore 18:34, Timo Sirainen ha scritto:

On 17.11.2011, at 18.47, Marco Carcano wrote:

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Oct 27 11:20:34 srv001 dovecot: lda(user3): msgid=

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: saved mail to INBOX

If Dovecot logs this, then the message definitely was saved to
INBOX.

it is exactly what I told to my colleagues, but belive me, sometime
some mail get lost -

Most likely reason for this is that the user's client deletes the
message. Possibly an automatic client side filter or some UI issue
that causes user to accidentally delete a mail. The mail_log
plugin's logging would have showed if this was the case.

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I suspect however that could be mine misconfiguration somewhere, so
that lda sometimes write the email not in the right place, but
elsewhere, and just write the phrase " saved mail to INBOX in the
logs (however I'm wondering why sometimes?!?)

I can't think of any reason why it would randomly write to a wrong
place.

maybe something related to LDAP lookups? what can happen if for some
reason the LDAP server does not reply to the lookup?

Timo, belive to me, I use dovecot since 3 years, and I am one of the
thousands of happy user, I really can't explain what is happening on
this server

I'll do this trial: I'll enable lda debug logging ont a file on a USB
hard disk - in order to know where exactly messages are stored, and
enable also maillog too

I'll keep you informed on what I'll find - maybe it will take some
days, as I told it happens quite seldom

thank you

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I tried to find the missed email in the Maildir, but have not been
able to get it - the commands used are

cd /home/mailboxstore/theuser/Maildir

grep "6000029222" */* |grep "RE:" grep "6000029222" .Drafts/* |grep "RE:" grep "6000029222" .Drafts/*/* |grep "RE:" grep "6000029222" .Junk/* |grep "RE:" grep "6000029222" .Posta\ eliminata/* |grep "RE:" grep "6000029222" .Posta\ indesiderata/* |grep "RE:" grep "6000029222" .Posta\ inviata/* |grep "RE:" grep "6000029222" .Sent/* |grep "RE:" grep "6000029222" .Templates/* |grep "RE:" grep "6000029222" .Trash/* |grep "RE:"

Only the grep "6000029222" .Drafts/*/* |grep "RE:" was grepping from
mail files. Easier would be just:

grep -r "RE:.*6000029222" .

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I really think is some kind of misconfiguration of mine, may you
help me, please? Just tell me what pieces of config to show (just
not to flood the whole config)

I doubt this is related to configuration.

But you could enable http://wiki2.dovecot.org/Plugins/Lazyexpunge so
that messages won't be lost if they are expunged. The next time a
message is lost, you would most likely find it from the lazy-expunge
namespace. (Then you could write a script that deletes e.g. >1 week
old files nightly.)