Debugging IMAP

See also: http://docs.kolab.org/administrator-guide/using-the-kolab-command-line.html

To list all mailboxes:

kolab list-mailboxes

Show the quota and used space for each mailbox:

kolab list-quota | grep -E "\(Used|Folder\: [^/]*/[^/]*@"

or

/usr/lib/cyrus-imapd/quota

To recalculate the quota:

/usr/lib/cyrus-imapd/quota -f

To list acls of a folder:

kolab list-mailbox-acls "user/test2.test2/Calendar/Personal Calendar@test.pokorra.de"
      Folder user/test2.test2/Calendar/Personal Calendar@test.pokorra.de
        lrswited      test.test@test.pokorra.de
        lrswipkxtecdan test2.test2@test.pokorra.de

To show all permissions of shared folders:

/usr/lib/cyrus-imapd/ctl_mboxlist -d

To debug with gdb:

gdb /usr/lib/cyrus-imapd/ctl_mboxlist
    run -d

ACL permissions for shared folders: see man cyradm, or https://cyrusimap.org/imap/admin/access-control/rights-reference.html

see https://wiki.kolab.org/Enable_Imap_protocol_logging for email account myuser@mydomain.de. This will write a separate log file for each IMAP connection:

mkdir /var/lib/imap/log/myuser@mydomain.de
chown cyrus:mail /var/lib/imap/log/myuser@mydomain.de
service cyrus-imapd restart

To see more details of a mailbox, eg. the Minor Version:

/usr/lib/cyrus-imapd/mbexamine user/myuser/Papierkorb@mydomain.de | more

To fix the mailbox minor version up to 13 for Cyrus IMAP 2.5, and the GUID problems:

# better do this in several steps. test first on a test system.
# sometimes the emails are marked as unread after this...
/usr/lib/cyrus-imapd/reconstruct -V 13 -r -f user/myuser@mydomain.de
/usr/lib/cyrus-imapd/reconstruct -G -r -f user/myuser@mydomain.de
/usr/lib/cyrus-imapd/reconstruct -R -r -f user/myuser@mydomain.de

For more details about the reconstruct parameters, see:

man reconstruct

cyradm (see password in /etc/kolab/kolab.conf, section cyrus-imap):

cyradm --user cyrus-admin localhost

Note: port 9993 for Cyrus, 993 for guam!

cyradm:

cat /etc/kolab/kolab.conf  | grep cyrus -C 3
cyradm localhost -u cyrus-admin    # using password from kolab.conf, cyrus-imap admin_password
delete user/hans/Calendar@mydomain.de

Test a connection from the outside, over port 995 (pop3s) (see also https://blog.yimingliu.com/2009/01/23/testing-a-pop3-server-via-telnet-or-openssl/):

openssl s_client -connect mykolabserver.de:995
  USER <user>
  PASS <pwd>