[Dovecot] Missing Emails

[David Morsberger]

Sven,

Thanks for the response. 

1. Nobody should be using pop3. The missing email appears to be random. I believe pop downloads would delete them all. I have now turned off pop3.

2. Would a mail rule place it in the 'Trash'? I did not find the email on the file system. I'm trying a wider search.

3. I followed the instructions on the wiki but it still doesn't appear to be logging everything.

conf.d/10-logging.conf

# Log file to use for informational messages. Defaults to log_path.
#info_log_path =
info_log_path = /Library/Logs/Mail/dovecot_info.log
# Log file to use for debug messages. Defaults to info_log_path.
debug_log_path = /Library/Logs/Mail/dovecot_debug.log


mail_plugins = $mail_plugins mail_log notify

plugin {
  # Events to log. Also available: flag_change append
  mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append
  # Available fields: uid, box, msgid, from, subject, size, vsize, flags
  # size and vsize are available only for expunge and copy events.
  mail_log_fields = uid box msgid size from subject size flags
}

I am not seeing messages of the following form in the dovecot_debug.log or dovecot_info.log
imap(user): copy -> Trash: uid=908, msgid=<123.foo at bar>
imap(user): deleted: uid=908, msgid=<123.foo at bar>
imap(user): expunged: uid=908, msgid=<123.foo at bar>


On Dec 27, 2012, at 10:54 PM, Sven Hartge <sven at svenhartge.de> wrote:

> David Morsberger <dave at morsberger.com> wrote:
> 
>> I reported a problem with disappearing emails on my Apple Mountain
>> Lion server. Not sure if it ever stopped but I do know it is happening
>> again.
> 
>> Help!!!! This is a company email server. They live and die by their
>> emails. 
> 
>> Emails show up in inbox and then disappear. 
> 
>> Anyone know why our emails are disappearing?
> 
> You should configure the mail_log plugin to log all actions clients do
> to your mails: http://wiki2.dovecot.org/Plugins/MailLog
> 
> I've had to debug similar problems in the past time (on a different IMAP
> server) and in _all_ cases it was something the user did, like having a
> client downloading the mails via POP3 (and forgetting about this) and
> complaining about missing mails from "the Webmailer Website". Or having
> configured a filter inside Thunderbird (and forgetting about this),
> instructing the client to delete mails matching a special rule.
> 
>> I see a reference to it in the dovecot.index.cache file (last item)
> 
> If there is a reference in this file, the mail must have reached
> dovecot. So the next step would be to find out, _what exactly_ the
> client does with it. See mail_log again.
> 
> Grüße,
> Sven.
> 
> -- 
> Sigmentation fault. Core dumped.
>