Dovecot lmtp doesn't log

[Tomislav Perisic]

Hi,

Thanks for replying.

initially logging was done via syslog, and the custom log file for mail.*
facility was /var/log/maillog. Everything was logged normally (dovecot
login logouts, sieve scripts, extra debugging lines) but nothing regarding
LMTP. I would receive the email in my inbox but I wouldnt be able to see
anything in the logs regarding this. After that i turned off syslog and
used the direct dovecot logging to a separate file. Again, it was logging
everything except of LMTP (mail debug is turned on).

Does anyone have a working configuration regarding this that they don't
have a problem with LMTP logging? If yes could you please send me your
config and dovecot version to compare.

Or if anyone has any other ideas.

Thank you.


On Thu, Nov 30, 2017 at 2:34 PM, Stephan Bosch <s.bosch at ox.io> wrote:

>
>
> Op 25-11-2017 om 13:00 schreef Tomislav Perisic:
>
>> Does anyone have any idea regarding this?
>>
>> On 17 Nov 2017 11:36, "Tomislav Perisic" <tomiperisic at gmail.com> wrote:
>>
>> Hi,
>>
>> We have 2 servers, server A and server B.
>>
>> Server A has:
>>
>> Postfix
>> dovecot-2.2.33.2-1.el6.x86_64
>>
>> Server B has:
>>
>> dovecot-2.2.33.2-1.el6.x86_64
>> dovecot-pigeonhole-2.2.33.2-1.el6.x86_64
>>
>> Server A receives email on postfix, dovecot then takes that email from
>> postfix and proxies it to Server B Dovecot. Dovecot on Server B takes the
>> proxied email and delivers it with lmtp to the user inboxes.
>>
>> The problem is that the dovecot on server B Doesn't log anything regarding
>> the emails that are being delivered to the mailbox via lmtp.
>>
>> Dovecot on server A logs everything perfectly regarding the proxy, so my
>> assumption is that there is an issue with Dovecot lmtp logging. We changed
>> the logging from syslog directly to a file and we noticed the same
>> problem,
>> missing log entries.
>>
>> We also tried turning on verbose logging and it didn't help.
>>
>
> Are you sure you're looking in the right place?
>
> You can find out where logs are written using `doveadm log find`.
>
> Especially with mail_debug enabled, you should see a lot of log messages
> for an LMTP delivery.
>
> Regards,
>
> Stephan.
>
>
>
>> Server B:
>>
>> Red Hat  6.7 x86_64
>>
>> rpm -qa | grep dove
>> dovecot-2.2.33.2-1.el6.x86_64
>> dovecot-pigeonhole-2.2.33.2-1.el6.x86_64
>>
>> doveconf -n
>>
>> # 2.2.33.2: /etc/dovecot/dovecot.conf
>> # Pigeonhole version 0.4.21
>> auth_cache_negative_ttl = 0
>> auth_debug = yes
>> auth_debug_passwords = yes
>> auth_verbose = yes
>> listen = *
>> mail_debug = yes
>> mail_gid = mail
>> mail_location = maildir:~/Maildir
>> mail_plugins = " quota zlib"
>> mail_uid = vmail
>> managesieve_notify_capability = mailto
>>
>> namespace inbox {
>>    inbox = yes
>>    location =
>>    mailbox Drafts {
>>      auto = subscribe
>>      special_use = \Drafts
>>    }
>>    mailbox Sent {
>>      auto = subscribe
>>      special_use = \Sent
>>    }
>>    mailbox Spam {
>>      auto = subscribe
>>      special_use = \Junk
>>    }
>>    mailbox Trash {
>>      auto = subscribe
>>      special_use = \Trash
>>    }
>>    mailbox Virus {
>>      auto = subscribe
>>    }
>>
>> plugin {
>>    quota = maildir:User quota
>>    sieve_extensions = +editheader
>>    sieve_max_actions = 32
>>    sieve_max_redirects = 4
>>    sieve_max_script_size = 1M
>>    sieve_quota_max_scripts = 0
>>    sieve_trace_debug = yes
>>    sieve_trace_level = matching
>>    sieve_vacation_dont_check_recipient = yes
>>    sieve_vacation_send_from_recipient = yes
>>    sieve_vacation_use_original_recipient = yes
>>    zlib_save = gz
>>    zlib_save_level = 6
>> }
>> protocols = imap pop3 lmtp sieve
>> service auth {
>>    unix_listener auth-userdb {
>>      group = mail
>>      mode = 0666
>>      user = vmail
>>    }
>> }
>> service lmtp {
>>    inet_listener lmtp {
>>      port = xx
>>    }
>> }
>> service managesieve-login {
>>    inet_listener sieve {
>>      port = xx
>>    }
>>    service_count = 1
>> }
>>
>> protocol lmtp {
>>    mail_plugins = " quota zlib sieve mail_log notify"
>> }
>> protocol imap {
>>    mail_plugins = " quota zlib imap_quota imap_zlib"
>> }
>> protocol sieve {
>>    managesieve_implementation_string = dovecot
>>    managesieve_logout_format = bytes ( in=%i : out=%o )
>>    managesieve_max_line_length = 65536
>>    managesieve_sieve_capability = fileinto reject envelope
>> encoded-character
>> vacation subaddress comparator-i;ascii-numeric relational regex imap4flags
>> copy include variables body enotify environment mailbox date ihave
>> }
>>
>
>