Here i sthe relevant error with the write error below.
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: message repeated 2 times: [ imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)]
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:31 imail2 dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 08:13:32 imail2 dovecot: master: Dovecot v2.2.33.2 (d6601f4ec) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 13 09:43:21 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 25237 returned error 67
May 13 09:43:28 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 25316 returned error 67
May 13 09:44:35 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 25758 returned error 67
May 13 09:45:12 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 26261 returned error 67
May 13 09:45:15 imail2 dovecot: quota-warning: Error: cat: write error: Broken pipe
May 13 09:45:15 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 26367 returned error 67
May 13 09:48:12 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 27500 returned error 67
May 13 09:49:00 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 27642 returned error 67
May 13 09:53:31 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 29081 returned error 67
May 13 11:09:10 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 4321 returned error 67
May 13 11:15:40 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 9637 returned error 67
May 13 12:08:51 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 3991 returned error 67
May 13 12:10:11 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 4462 returned error 67
May 13 12:10:12 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 4472 returned error 67
May 13 14:56:30 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 10976 returned error 67
May 13 14:56:41 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 11076 returned error 67
May 13 14:56:41 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 11086 returned error 67
May 13 14:56:50 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 11121 returned error 67
May 13 14:56:55 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 11143 returned error 67
May 13 14:56:59 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 11179 returned error 67
May 13 15:10:56 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 16318 returned error 67
May 13 15:11:07 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 16716 returned error 67
May 13 15:20:31 imail2 dovecot: quota-warning: Fatal: master: service(quota-warning): child 20052 returned error 67
May 13 15:27:27 imail2 dovecot: master: Warning: Killed with signal 15 (by pid=22421 uid=0 code=kill)
May 13 15:27:28 imail2 dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 13 15:27:28 imail2 dovecot: master: Dovecot v2.2.33.2 (d6601f4ec) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Loading modules from directory: /usr/lib/dovecot/modules
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib01_acl_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib02_imap_acl_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib10_quota_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib11_imap_quota_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib20_mail_log_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib20_mailbox_alias_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib90_stats_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib95_imap_stats_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Added userdb setting: mail=maildir:~/Maildir/
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Added userdb setting: plugin/master_user=bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Added userdb setting: plugin/quota_rule=*:bytes=209715200
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Effective uid=2000, gid=2000, home=/var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09/
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota root: name=user backend=dict args=:proxy::quotadict
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota rule: root=user mailbox=* bytes=209715200 messages=0
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=209715200 (100%) messages=0 reverse=no command=quota-warning 100 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=199229440 (95%) messages=0 reverse=no command=quota-warning 95 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=188743680 (90%) messages=0 reverse=no command=quota-warning 90 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=178257920 (85%) messages=0 reverse=no command=quota-warning 85 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota grace: root=user bytes=20971520 (10%)
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: dict quota: user=bbundhoo@mk.cmt.mu, uri=proxy::quotadict, noenforcing=0
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir/
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: maildir++: root=/var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09//Maildir, index=, indexpvt=, control=, inbox=/var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09//Maildir, alt=
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: initializing backend with data: vfile
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: acl username = bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: owner = 1
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl vfile: Global ACLs disabled
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/Shared/%Ld/%Ln
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt=
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: initializing backend with data: vfile
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: acl username = bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: owner = 0
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl vfile: Global ACLs disabled
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: quota: quota_over_flag check: quota_over_script unset - skipping
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Sent: Mailbox opened because: SELECT
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl vfile: file /var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09//Maildir/.Sent/dovecot-acl not found
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Trash: Mailbox opened because: UID MOVE
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl vfile: file /var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09//Maildir/.Trash/dovecot-acl not found
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Trash: Mailbox opened because: STATUS
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Loading modules from directory: /usr/lib/dovecot/modules
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib01_acl_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib02_imap_acl_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib10_quota_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib11_imap_quota_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib20_mail_log_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib20_mailbox_alias_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib90_stats_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib95_imap_stats_plugin.so
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Added userdb setting: mail=maildir:~/Maildir/
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Added userdb setting: plugin/master_user=bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Added userdb setting: plugin/quota_rule=*:bytes=209715200
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Effective uid=2000, gid=2000, home=/var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09/
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota root: name=user backend=dict args=:proxy::quotadict
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota rule: root=user mailbox=* bytes=209715200 messages=0
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=209715200 (100%) messages=0 reverse=no command=quota-warning 100 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=199229440 (95%) messages=0 reverse=no command=quota-warning 95 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=188743680 (90%) messages=0 reverse=no command=quota-warning 90 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota warning: bytes=178257920 (85%) messages=0 reverse=no command=quota-warning 85 bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Quota grace: root=user bytes=20971520 (10%)
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: dict quota: user=bbundhoo@mk.cmt.mu, uri=proxy::quotadict, noenforcing=0
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir/
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: maildir++: root=/var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09//Maildir, index=, indexpvt=, control=, inbox=/var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09//Maildir, alt=
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: initializing backend with data: vfile
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: acl username = bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: owner = 1
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl vfile: Global ACLs disabled
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/Shared/%Ld/%Ln
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt=
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: initializing backend with data: vfile
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: acl username = bbundhoo@mk.cmt.mu
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl: owner = 0
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl vfile: Global ACLs disabled
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: quota: quota_over_flag check: quota_over_script unset - skipping
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Sent: Mailbox opened because: SELECT
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: acl vfile: file /var/vmail/vmail1/mk.cmt.mu/b/b/u/bbundhoo-2017.08.31.11.28.09//Maildir/.Sent/dovecot-acl not found
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Mailbox Sent: Opened mail UID=2895 because: prefetch
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Mailbox Sent: Opened mail UID=2895 because: access
May 13 15:27:28 imail2 dovecot: imap(bbundhoo@mk.cmt.mu): Debug: Mailbox Sent: Opened mail UID=2895 because: MIME part
May 13 15:27:28 imail2 dovecot: imap(ltkgreywarehouse@fm.cmt.mu): Debug: Loading modules from directory: /usr/lib/dovecot/modules
May 13 15:27:28 imail2 dovecot: imap(ltkgreywarehouse@fm.cmt.mu): Debug: Module loaded: /usr/lib/dovecot/modules/lib01_acl_plugin.so