==== Required information ====
- iRedMail version (check /etc/iredmail-release): .0.9.7
- Linux/BSD distribution name and version: ubuntu
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MariaDB
- Web server (Apache or Nginx):Nginx
- Manage mail accounts with iRedAdmin-Pro?No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.

● dovecot.service - Dovecot IMAP/POP3 email server
   Loaded: loaded (/lib/systemd/system/dovecot.service; enabled; vendor preset:
   Active: failed (Result: exit-code) since Sat 2017-10-28 18:15:12 UTC; 32s ago
     Docs: man:dovecot(1)
           http://wiki2.dovecot.org/
  Process: 2864 ExecStart=/usr/sbin/dovecot (code=exited, status=89)

Oct 28 18:15:12 mail.dempseycentral.com dovecot[2864]: doveconf: Warning: Obsole
Oct 28 18:15:12 mail.dempseycentral.com dovecot[2864]: doveconf: Warning: Obsole
Oct 28 18:15:12 mail.dempseycentral.com dovecot[2864]: doveconf: Warning: NOTE:
Oct 28 18:15:12 mail.dempseycentral.com dovecot[2864]: doveconf: Warning: Obsole
Oct 28 18:15:12 mail.dempseycentral.com dovecot[2864]: doveconf: Warning: Obsole
Oct 28 18:15:12 mail.dempseycentral.com dovecot[2864]: doveconf: Fatal: Error in
Oct 28 18:15:12 mail.dempseycentral.com systemd[1]: dovecot.service: Control pro
Oct 28 18:15:12 mail.dempseycentral.com systemd[1]: Failed to start Dovecot IMAP
Oct 28 18:15:12 mail.dempseycentral.com systemd[1]: dovecot.service: Unit entere
Oct 28 18:15:12 mail.dempseycentral.com systemd[1]: dovecot.service: Failed with

====

Okay i am getting this error could use some suggestions as to how to get the server up and running.  Thanks