HI Uptimejeff, thanks for your input as well. I'm not to good on permissions in *nix systems, so I'm learning as I go. After running your command, I get the following in the Mail Server Log:
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: opendir(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468) failed: Permission denied (euid=214(_dovecot) egid=6(mail) missing +r perm: /Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468, UNIX perms appear ok (ACL/MAC wrong?))
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/new) failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/new) for kq notify failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/cur) for kq notify failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/new) failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) for kq notify failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/cur) for kq notify failed: Permission denied
Dec 17 17:24:47 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) failed: Permission denied
Dec 17 17:24:55 rocking-mm.com log[70839]: imap-login: Login: user=<helpdesk>, method=PLAIN, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:24:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906/tmp) failed: Permission denied (euid=214(_dovecot) egid=6(mail) missing +x perm: /Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906, dir owned by 501:80 mode=0700)
Dec 17 17:24:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Error: opendir(/Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906) failed: Permission denied (euid=214(_dovecot) egid=6(mail) missing +r perm: /Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906, UNIX perms appear ok (ACL/MAC wrong?))
Dec 17 17:24:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Disconnected: Logged out bytes=44/565
Dec 17 17:24:58 rocking-mm.com log[70839]: imap-login: Login: user=<com.apple.calendarserver>, method=CRAM-MD5, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:24:58 rocking-mm.com log[70839]: imap(pid 78823 user com.apple.calendarserver): Disconnected: Logged out bytes=68/817
Dec 17 17:25:29 rocking-mm.com log[70839]: imap-login: Login: user=<com.apple.calendarserver>, method=CRAM-MD5, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:25:29 rocking-mm.com log[70839]: imap(pid 78823 user com.apple.calendarserver): Disconnected: Logged out bytes=68/817
Dec 17 17:25:55 rocking-mm.com log[70839]: imap-login: Login: user=<helpdesk>, method=PLAIN, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:25:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906/tmp) failed: Permission denied (euid=214(_dovecot) egid=6(mail) missing +x perm: /Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906, dir owned by 501:80 mode=0700)
Dec 17 17:25:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Error: opendir(/Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906) failed: Permission denied (euid=214(_dovecot) egid=6(mail) missing +r perm: /Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906, UNIX perms appear ok (ACL/MAC wrong?))
Dec 17 17:25:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Disconnected: Logged out bytes=44/565
Dec 17 17:25:59 rocking-mm.com log[70839]: imap-login: Login: user=<com.apple.calendarserver>, method=CRAM-MD5, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:25:59 rocking-mm.com log[70839]: imap(pid 78823 user com.apple.calendarserver): Disconnected: Logged out bytes=68/817
Dec 17 17:26:06 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) failed: Permission denied
Dec 17 17:26:06 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) for kq notify failed: Permission denied
Dec 17 17:26:06 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/cur) for kq notify failed: Permission denied
Dec 17 17:26:06 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) failed: Permission denied
Dec 17 17:26:07 --- last message repeated 1 time ---
Dec 17 17:26:07 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/new) failed: Permission denied
Dec 17 17:26:07 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) for kq notify failed: Permission denied
Dec 17 17:26:07 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/cur) for kq notify failed: Permission denied
Dec 17 17:26:07 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/new) failed: Permission denied
Dec 17 17:26:07 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/new) for kq notify failed: Permission denied
Dec 17 17:26:07 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: open(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/cur) for kq notify failed: Permission denied
Dec 17 17:26:07 rocking-mm.com log[70839]: imap(pid 70846 user mike.bronner): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/D7323894-E4FF-4380-AB05-BC288D6B6468/.Sent Messages/new) failed: Permission denied
Dec 17 17:26:29 rocking-mm.com log[70839]: imap-login: Login: user=<com.apple.calendarserver>, method=CRAM-MD5, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:26:29 rocking-mm.com log[70839]: imap(pid 78823 user com.apple.calendarserver): Disconnected: Logged out bytes=68/817
Dec 17 17:26:55 rocking-mm.com log[70839]: imap-login: Login: user=<helpdesk>, method=PLAIN, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:26:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Error: stat(/Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906/tmp) failed: Permission denied (euid=214(_dovecot) egid=6(mail) missing +x perm: /Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906, dir owned by 501:80 mode=0700)
Dec 17 17:26:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Error: opendir(/Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906) failed: Permission denied (euid=214(_dovecot) egid=6(mail) missing +r perm: /Volumes/Data HD/Library/Server/Mail/Data/mail/0E8BDDB9-34F5-4C18-AA40-BDD759130906, UNIX perms appear ok (ACL/MAC wrong?))
Dec 17 17:26:55 rocking-mm.com log[70839]: imap(pid 78823 user helpdesk): Disconnected: Logged out bytes=44/565
Dec 17 17:26:59 rocking-mm.com log[70839]: imap-login: Login: user=<com.apple.calendarserver>, method=CRAM-MD5, rip=192.168.13.10, lip=192.168.13.10, mpid=78823, TLS
Dec 17 17:26:59 rocking-mm.com log[70839]: imap(pid 78823 user com.apple.calendarserver): Disconnected: Logged out bytes=68/817