Sep 27 10:56:18 [dovecot] imap-login: Login: user=<other@my.domain>, method=PLAIN, rip=dead::beef, lip=dead::beef, mpid=15210, secured, session=<QJXkqFnn3AAqAykAAAI
AAQAAAAAAAAAc>
Sep 27 10:56:18 [dovecot] imap: Debug: Loading modules from directory: /usr/lib64/dovecot
Sep 27 10:56:18 [dovecot] imap: Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so
Sep 27 10:56:18 [dovecot] imap: Debug: Module loaded: /usr/lib64/dovecot/lib02_imap_acl_plugin.so
Sep 27 10:56:18 [dovecot] imap: Debug: Module loaded: /usr/lib64/dovecot/lib90_antispam_plugin.so
Sep 27 10:56:18 [dovecot] imap: Debug: Added userdb setting: namespace/gemeinsam/location=yes
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: Effective uid=1002, gid=1005, home=/var/vmail/my.domain/other
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: acl: No acl_shared_dict setting - shared mailbox listing is disabled
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: Namespace inbox: type=private, prefix=, sep=., inbox=yes, hidden=no, list=yes, subscriptions=yes location=sdbox:/var/vmail
/necoro.eu/tum/
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: fs: root=/var/vmail/my.domain/other, index=, indexpvt=, control=, inbox=, alt=
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: acl: initializing backend with data: vfile:/etc/dovecot/global-acls:cache_secs=300
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: acl: acl username = other@my.domain
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: acl: owner = 1
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: acl vfile: Global ACL directory: /etc/dovecot/global-acls
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: Namespace gemeinsam: type=public, prefix=Gemeinsam., sep=., inbox=no, hidden=no, list=yes, subscriptions=no location=yes
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: sdbox autodetect: stat(yes/mailboxes) failed: No such file or directory
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: mdbox autodetect: stat(yes/storage) failed: No such file or directory
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: maildir autodetect: stat(yes/cur) failed: No such file or directory
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Debug: sdbox autodetect: stat(yes/mailboxes) failed: No such file or directory
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Error: user other@my.domain: Initialization failed: Namespace 'Gemeinsam.': Ambiguous mail location setting, don't know what to do 
with it: yes (try prefixing it with mbox: or maildir:)
Sep 27 10:56:18 [dovecot] imap(other@my.domain): Error: Invalid user settings. Refer to server log for more information.