dovecot stats-writer socket permissions

[Scott Ruckh]

I have seen this thread about being able to run doveadm as a non-root 
user, but I don't understand the solution even though I have seen other 
pages give this link as the solution.

http://bit.ly/2MC5oq9

What configuration is necessary so that I can set the permissions on 
/var/run/dovecot/stats-writer socket-file so when dovecot starts my 
virtual mail account has read/write access?

I saw another page about adding

service stats {
}

Although I set user, group, and permissions, it did not seem to have any 
effect on the permissions when I restarted dovecot.

Thank You.