I have stood up a new test mail server as an upgraded version of my existing mail server. I have been fairly consistently getting two types of error messages. I'm thinking they may be related permissions issues, but I can't figure out what their problem is.

Oct 4 12:45:47 digory dovecot: imap(guenther): Error: file_dotlock_open() failed with file /home/guenther/mail/ForUs/.imap/Home/dovecot.index.log: Resource temporarily unavailable

Oct 4 12:46:16 digory dovecot: imap(guenther): Error: file_dotlock_open(/home/guenther/mail/ForUs/PCS/.imap/PCS misc/dovecot.index.log) failed: Permission denied (euid=500(guenther) egid=500(guenther), access(/home/guenther/mail/ForUs/PCS/.imap/PCS misc/dovecot.index.log, 4) failed: No such file or directory)

Here are my specifics:

OS: CentOS 6.4 - 2.6.32-358.11.1.el6.x86_64 MailScanner: 4.84.6 Postfix: 2.6.6 DoveCot: 2.2.4 NFS v4 (both the mail spool and /home are NVS v4 mounts to file server)

Here are the non-default settings:

dovecot -n

# 2.2.4: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-358.11.1.el6.x86_64 x86_64 CentOS release 6.4 (Fina auth_verbose = yes disable_plaintext_auth = no mail_access_groups = users,guenther mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u mail_privileged_group = mail 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 } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } ssl_cert = </etc/postfix/ssl/xxxxxxxxxx.crt ssl_key = </etc/postfix/ssl/xxxxxxxxxx.key userdb { driver = passwd } verbose_ssl = yes

Thanks -- Dean Guenther