==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.5-1
- Linux/BSD distribution name and version: CentOS 7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro?
- Related log if you're reporting an issue:
====

I am attempting to adapt the instructions here http://www.iredmail.org/forum/topic8169 … assin.html for enabling bayesian learning logic when moving mail to/from the Junk folder. 

My problem is that the tutorial is for Debian, using apt-get.  I am using CentOS 7, and there is no dovecot-antispam package in yum. 

I have attempted to install the plugin from source here, but get the error that DC_DOVECOT: not found.  It suggests pointing to the folder containing dovecot.m4, which I cannot find. 

I have already followed the instructions on http://www.iredmail.org/docs/store.spam … n.sql.html to make the learning logic work when accessing the mail through roundcube, which works.