Currently cannot use IMAP as our application to access the mailbox currently is only setup to access pop3 mailboxes. We are currently using Dovecot 2.1.4. Below is the majority of our configs, it is mostly basic: protocols = pop3 listen = ***Address here*** base_dir = /var/run/dovecot1/ instance_name = Popper login_greeting = Popper mail_location = mbox:/var/empty:INBOX=/opt/mailstore/spool/mail/%u:INDEX=MEMORY !include conf.d/*.conf !include_try local.conf disable_plaintext_auth = no auth_mechanisms = plain log_path = syslog syslog_facility = mail auth_verbose = yes log_timestamp = "%b %d %H:%M:%S " namespace inbox { inbox = yes } mail_privileged_group = mail lock_method = fcntl mbox_read_locks = fcntl mbox_write_locks = dotlock fcntl pop3_uidl_format = %08Xu%08Xv passdb { driver = checkpassword args = /usr/bin/checkpassword } userdb { driver = prefetch }