[Dovecot] Mail being delivered to mbox instead of Maildir

[Sean Smitz]

Output of dovecot -n:
# 1.0.7: /etc/dovecot.conf
protocols: imaps
ssl_cert_file: /etc/pki/dovecot/certs/mailserv1.cer
ssl_key_file: /etc/pki/dovecot/private/mailserv1.pem
login_dir: /var/run/dovecot/login
login_executable: /usr/libexec/dovecot/imap-login
mail_access_groups: mail
mail_location: maildir:~/Maildir
mail_full_filesystem_access: yes
maildir_copy_with_hardlinks: yes
auth default:
  passdb:
    driver: pam
    args: cache_key=%u%s dovecot
  userdb:
    driver: passwd