I have a sendmail/dovecot imap/pop3 system that has been running with the following mail_location: mail_location = mbox:/var/empty:INBOX=/var/spool/mail/%u:INDEX=/var/indexes/%u In order to reduce errors and simplify operation I removed imap and am now only responding to pop3. I'd like to also simplify the mail_location to get rid of index errors since I don't need indexes: mail_location = mbox:/var/spool/mail:INBOX=/var/spool/mail/%n But when I applied the new mail_location I began to get the following five errors: Nov 6 23:17:24 sendmail dovecot: pop3(chayes): Warning: UIDVALIDITY changed (1132434125 -> 1205169149) in mbox file /var/spool/mail/chayes Nov 6 23:17:26 sendmail dovecot: pop3(chayes): Panic: Message unexpectedly expunged from index Nov 6 23:17:26 sendmail dovecot: pop3(chayes): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0() [0x3340045e2a] -> /usr/lib64/dovecot/libdovecot.so.0() [0x3340045e6e] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x3340019eb3] -> /usr/lib64/dovecot/libdovecot-storage.so.0() [0x3ef62567ed] -> /usr/lib64/dovecot/libdovecot-storage.so.0() [0x3ef6256e75] -> /usr/lib64/dovecot/libdovecot-storage.so.0() [0x3ef62928ed] -> /usr/lib64/dovecot/libdovecot-storage.so.0(index_mail_set_seq+0x76) [0x3ef6294ae6] -> /usr/lib64/dovecot/libdovecot-storage.so.0() [0x3ef625698c] -> dovecot/pop3() [0x405ec7] -> dovecot/pop3(client_command_execute+0x6d7) [0x4071c7] -> dovecot/pop3(client_handle_input+0x78) [0x405618] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x3340052c36] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0xa7) [0x3340053a57] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x3340052778] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x334003e3c3] -> dovecot/pop3(main+0x283) [0x403cc3] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x359f821a05] -> dovecot/pop3() [0x403e2d] Nov 6 23:17:26 sendmail dovecot: pop3(chayes): Fatal: master: service(pop3): child 3358 killed with signal 6 (core dumps disabled) Nov 6 23:18:00 sendmail dovecot: pop3(jbkirk): Error: open(/var/spool/mail/.imap/INBOX/dovecot.index.log) failed: Permission denied (euid=2151(jbkirk) egid=12(mail) missing +r perm: /var/spool/mail/.imap/INBOX/dovecot.index.log, dir owned by 3575:12 mode=0770) dovecot -n output # 2.1.16: /etc/dovecot/dovecot.conf # OS: Linux 3.9.2-200.fc18.x86_64 x86_64 Fedora release 18 (Spherical Cow) ext4 auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = plain disable_plaintext_auth = no mail_location = mbox:/var/empty:INBOX=/var/spool/mail/%u:INDEX=/var/indexes/%u mbox_write_locks = fcntl namespace inbox { inbox = yes location mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix } passdb { driver = pam } protocols = pop3 ssl = no ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } What do I need to do to transition to the new mail_location without the errors? Thanks in advance.