Hi Zhang,
I can only see following logs in dovecot.log:
-----------------------------------------------
Oct 08 11:25:31 imap-login: Info: Login: user=<ketan.aagja@mydomain.co.uk>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22455, secured, session=<d9lN8lc+IAB/AAAB>
Oct 08 11:25:31 imap: Debug: Loading modules from directory: /usr/lib64/dovecot
Oct 08 11:25:31 imap: Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so
Oct 08 11:25:31 imap: Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so
Oct 08 11:25:31 imap: Debug: Module loaded: /usr/lib64/dovecot/lib11_imap_quota_plugin.so
Oct 08 11:25:31 imap: Debug: Module loaded: /usr/lib64/dovecot/lib15_notify_plugin.so
Oct 08 11:25:31 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_mailbox_alias_plugin.so
Oct 08 11:25:31 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_replication_plugin.so
Oct 08 11:25:31 imap: Debug: Added userdb setting: mail=maildir:~/Maildir/
Oct 08 11:25:31 imap: Debug: Added userdb setting: plugin/master_user=ketan.aagja@mydomain.co.uk
Oct 08 11:25:31 imap: Debug: Added userdb setting: plugin/quota_rule=*:bytes=0
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Effective uid=2000, gid=2000, home=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10/
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Quota root: name=user backend=dict args=:proxy::quotadict
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Quota rule: root=user mailbox=* bytes=0 messages=0
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (100%) messages=0 reverse=no command=quota-warning 100 ketan.aagja@mydomain.co.uk
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (95%) messages=0 reverse=no command=quota-warning 95 ketan.aagja@mydomain.co.uk
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (90%) messages=0 reverse=no command=quota-warning 90 ketan.aagja@mydomain.co.uk
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (85%) messages=0 reverse=no command=quota-warning 85 ketan.aagja@mydomain.co.uk
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Quota grace: root=user bytes=0 (10%)
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: dict quota: user=ketan.aagja@mydomain.co.uk, uri=proxy::quotadict, noenforcing=0
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir/
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: maildir++: root=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, index=, indexpvt=, control=, inbox=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, alt=
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 1
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/Shared/%u
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt=
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 0
Oct 08 11:25:31 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: reading file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/dovecot-acl
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Sent/dovecot-acl not found
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Drafts/dovecot-acl not found
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Trash/dovecot-acl not found
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Junk/dovecot-acl not found
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Info: Disconnected: Logged out in=151 out=1200
Oct 08 11:25:32 imap-login: Info: Login: user=<ketan.aagja@mydomain.co.uk>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22459, secured, session=<h/pX8lc+KgB/AAAB>
Oct 08 11:25:32 imap: Debug: Loading modules from directory: /usr/lib64/dovecot
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib11_imap_quota_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib15_notify_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_mailbox_alias_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_replication_plugin.so
Oct 08 11:25:32 imap: Debug: Added userdb setting: mail=maildir:~/Maildir/
Oct 08 11:25:32 imap: Debug: Added userdb setting: plugin/master_user=ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap: Debug: Added userdb setting: plugin/quota_rule=*:bytes=0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Effective uid=2000, gid=2000, home=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10/
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota root: name=user backend=dict args=:proxy::quotadict
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota rule: root=user mailbox=* bytes=0 messages=0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (100%) messages=0 reverse=no command=quota-warning 100 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (95%) messages=0 reverse=no command=quota-warning 95 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (90%) messages=0 reverse=no command=quota-warning 90 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (85%) messages=0 reverse=no command=quota-warning 85 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota grace: root=user bytes=0 (10%)
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: dict quota: user=ketan.aagja@mydomain.co.uk, uri=proxy::quotadict, noenforcing=0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir/
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: maildir++: root=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, index=, indexpvt=, control=, inbox=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, alt=
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 1
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/Shared/%u
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt=
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:32 imap-login: Info: Login: user=<ketan.aagja@mydomain.co.uk>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22460, secured, session=<MGNY8lc+LgB/AAAB>
Oct 08 11:25:32 imap: Debug: Loading modules from directory: /usr/lib64/dovecot
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib11_imap_quota_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib15_notify_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_mailbox_alias_plugin.so
Oct 08 11:25:32 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_replication_plugin.so
Oct 08 11:25:32 imap: Debug: Added userdb setting: mail=maildir:~/Maildir/
Oct 08 11:25:32 imap: Debug: Added userdb setting: plugin/master_user=ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap: Debug: Added userdb setting: plugin/quota_rule=*:bytes=0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Effective uid=2000, gid=2000, home=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10/
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota root: name=user backend=dict args=:proxy::quotadict
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota rule: root=user mailbox=* bytes=0 messages=0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (100%) messages=0 reverse=no command=quota-warning 100 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (95%) messages=0 reverse=no command=quota-warning 95 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (90%) messages=0 reverse=no command=quota-warning 90 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (85%) messages=0 reverse=no command=quota-warning 85 ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Quota grace: root=user bytes=0 (10%)
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: dict quota: user=ketan.aagja@mydomain.co.uk, uri=proxy::quotadict, noenforcing=0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir/
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: maildir++: root=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, index=, indexpvt=, control=, inbox=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, alt=
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 1
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/Shared/%u
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt=
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 0
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: reading file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/dovecot-acl
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Info: Disconnected: Logged out in=145 out=1343
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: reading file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/dovecot-acl
Oct 08 11:25:32 imap(ketan.aagja@mydomain.co.uk): Info: Disconnected: Logged out in=316 out=2093
Oct 08 11:25:36 imap-login: Info: Login: user=<ketan.aagja@mydomain.co.uk>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=22476, secured, session=<ezGN8lc+YgB/AAAB>
Oct 08 11:25:36 imap: Debug: Loading modules from directory: /usr/lib64/dovecot
Oct 08 11:25:36 imap: Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so
Oct 08 11:25:36 imap: Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so
Oct 08 11:25:36 imap: Debug: Module loaded: /usr/lib64/dovecot/lib11_imap_quota_plugin.so
Oct 08 11:25:36 imap: Debug: Module loaded: /usr/lib64/dovecot/lib15_notify_plugin.so
Oct 08 11:25:36 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_mailbox_alias_plugin.so
Oct 08 11:25:36 imap: Debug: Module loaded: /usr/lib64/dovecot/lib20_replication_plugin.so
Oct 08 11:25:36 imap: Debug: Added userdb setting: mail=maildir:~/Maildir/
Oct 08 11:25:36 imap: Debug: Added userdb setting: plugin/master_user=ketan.aagja@mydomain.co.uk
Oct 08 11:25:36 imap: Debug: Added userdb setting: plugin/quota_rule=*:bytes=0
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Effective uid=2000, gid=2000, home=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10/
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Quota root: name=user backend=dict args=:proxy::quotadict
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Quota rule: root=user mailbox=* bytes=0 messages=0
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (100%) messages=0 reverse=no command=quota-warning 100 ketan.aagja@mydomain.co.uk
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (95%) messages=0 reverse=no command=quota-warning 95 ketan.aagja@mydomain.co.uk
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (90%) messages=0 reverse=no command=quota-warning 90 ketan.aagja@mydomain.co.uk
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Quota warning: bytes=0 (85%) messages=0 reverse=no command=quota-warning 85 ketan.aagja@mydomain.co.uk
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Quota grace: root=user bytes=0 (10%)
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: dict quota: user=ketan.aagja@mydomain.co.uk, uri=proxy::quotadict, noenforcing=0
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir/
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: maildir++: root=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, index=, indexpvt=, control=, inbox=/var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir, alt=
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 1
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/Shared/%u
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt=
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl: initializing backend with data: vfile
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl: acl username = ketan.aagja@mydomain.co.uk
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl: owner = 0
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: Global ACL directory: (none)
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: reading file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/dovecot-acl
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Sent/dovecot-acl not found
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Drafts/dovecot-acl not found
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Trash/dovecot-acl not found
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Debug: acl vfile: file /var/vmail/vmail1/mydomain.co.uk/k/e/t/ketan.aagja-2016.10.07.18.27.10//Maildir/.Junk/dovecot-acl not found
Oct 08 11:25:36 imap(ketan.aagja@mydomain.co.uk): Info: Disconnected: Logged out in=151 out=1200
-----------------------------------------------
Hope this helps.