Question on setting up dovecot

Thu Feb 11 19:21:31 UTC 2016

W dniu 11.02.2016 o 18:09, Jeffery Small pisze:
> Many thanks to Joseph Tam and Steffen Kaiser for pointing me to the logging
> information that I should have been using in the first place.  Now that
> I have separate log files and debugging information, I'm still at a loss
> to see why the mail is not being pulled over from the Linux system to the
> Windows 7 machine.  To recap, here is the output from doveconf -n:
>
> ----------------------------------------------------------------------
> # 2.2.18: /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.4.8 (0c4ae064f307+)
> # OS: Linux 4.2.0-27-generic x86_64 Ubuntu 15.10
> auth_debug = yes
> auth_verbose = yes
> disable_plaintext_auth = no
> info_log_path = /var/log/dovecot.info
> log_path = /var/log/dovecot
> mail_debug = yes
> mail_location = mbox:~/lib/Mail:INBOX=/var/mail/%u
> passdb {
>    driver = pam
> }
> protocols = imap pop3
> ssl_cert = </etc/dovecot/dovecot.pem
> ssl_key = </etc/dovecot/private/dovecot.pem
> userdb {
>    driver = passwd
> }
> userdb {
>    driver = passwd
> }
> verbose_ssl = yes
> ----------------------------------------------------------------------
>
> Here is the configuration logging/debug info:
>
> ----------------------------------------------------------------------
> log_path = /var/log/dovecot
> info_log_path = /var/log/dovecot.info
> auth_verbose = yes
> auth_debug = yes
> mail_debug = yes
> verbose_ssl = yes
> ----------------------------------------------------------------------
>
> And here is the complete set of Debug/Info information logged when Outlook
> on the Win7 system attempts a Send/Receive operation.  Long lines broken
> for readability:
>
> ----------------------------------------------------------------------
> Feb 11 08:47:49 auth: Debug: Loading modules from directory: \
> 		/usr/lib/dovecot/modules/auth
> Feb 11 08:47:49 auth: Debug: Read auth token secret from \
> 		/var/run/dovecot/auth-token-secret.dat
> Feb 11 08:47:49 auth: Debug: auth client connected (pid=7861)
>
>
> cokycody2 at gmail.com 10-Feb-16 13:28 # 
> <https://www.gurochan.ch/g/res/23522.html#24347> 24347 
> <https://www.gurochan.ch/g/res/23522.html#q24347>
>
> Feb 11 08:47:49 auth: Debug: client in: AUTH    1   PLAIN \
> 		service=pop3    session=dF2ST4ErtQDMa1sC \
> 		lip=<server_IP>    rip=<client_IP> \
> 		lport=110 rport=54453 resp=<hidden>
> Feb 11 08:47:49 auth-worker(7864): Debug: Loading modules from directory: \
> 		/usr/lib/dovecot/modules/auth
> Feb 11 08:47:49 auth-worker(7864): Debug: pam(sherril,<client_IP>): \
> 		lookup service=dovecot
> Feb 11 08:47:49 auth-worker(7864): Debug: pam(sherril,<client_IP>): \
> 		#1/1 style=1 msg=Password:
> Feb 11 08:47:49 auth: Debug: client passdb out: OK  1   user=sherril
> Feb 11 08:47:49 auth: Debug: master in: REQUEST 1975517185  7861    1 \
> 		b48910c85f39498e2fe83277d7e94028    session_pid=7866
> Feb 11 08:47:49 auth-worker(7864): Debug: pam(sherril,<client_IP>): lookup
> Feb 11 08:47:49 auth: Debug: master userdb out: USER    1975517185 \
> 		sherril system_groups_user=sherril  uid=1001 gid=1001 \
> 		home=/u/sherril
> Feb 11 08:47:49 pop3-login: Info: Login: user=<sherril>, method=PLAIN, \
> 		rip=<client_IP>, lip=<server_IP>, mpid=7866, \
> 		session=<dF2ST4ErtQDMa1sC>
> Feb 11 08:47:49 pop3(sherril): Debug: Effective uid=1001, gid=1001, \
> 		home=/u/sherril
> Feb 11 08:47:49 pop3(sherril): Debug: fs: root=/u/sherril/lib/Mail, \
> 		index=, indexpvt=, control=, inbox=/var/mail/sherril, alt=
> Feb 11 08:47:49 pop3(sherril): Info: Disconnected: Logged out top=0/0, \
> 		retr=0/0, del=0/3, size=36928
> ----------------------------------------------------------------------
Hi

For me it seems like outlook problem (we sometimes  get strange problems 
with outlook, most of the time they are caused either by AV software 
interfering or outlook user profile or .pst file corruption)
Have you checked different mail program or even telnet to see for problems?
As or anti virus programs we had problems i can say for sure Norton and 
Kaspersky were problematic, causing unexpected connection failures ie 
after successfull auth connection was closed.
As for outlook problems in most cases of pst coruption we got outlook 
errors suggesting connection problems.
With profile corruption there were quite fiew different problems 
(outlook not cnnecting, droping connection out of bue, having problem 
authenticating, repetadly asking for password ...)
The best way we found to test it was using different emai client to test 
if the problem is generic or outlook related in rare cases we used 
telnet (pop3 is quite simple protocol)

As for dovecot side there are some compatibility options for older 
(hopefully) mail clients
outlook related would be
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh

As for Your log last line suggests there are 3 mails in inbox

Info: Disconnected: Logged out top=0/0, retr=0/0, del=0/3, size=36928

top=x/y
x- top commands issued (comand to retrive part of message ie headers)
y - bytes sent as result
retr=x/y
x - retr commands issued (client requests to get message)
the size is cumulative size of all messages
del=x/y
x - number of deleted messages
y- numer of messages in inbox before any deletes, if there were no deletes total messages in inbox
size=x - mailbox size in bytes before any messages were deleted

mbox format stores multiple messages in single file You can just du sudo -u sherril cat /var/mail/sherril to see the messages on commandline and at same time check if user sherril has permission to read the file (if im right you are using system users not virual ones) but according to the log everything should be ok.

regards
Przemek

> There are no errors.  We have a pop3 connection.  The user's name,
> uid, gid, password, home directory are all correct.  The inbox is
> listed as /var/mail/sherril which is correct, and this file has the
> correct ownership and permissions:
>
> # ls -l /var/mail/sherril
> -rw-rw---- 1 sherril mail 194900 Feb 11 09:00 /var/mail/sherril
>
> Yet, no mail is pulled over.  Are there any clues here?
>
> Thanks,
> --
> Jeff
>