خطای Error service(pop3-login) listen(,110) failed Address already

listen(*,) failed: Address already in use  

برای رفع مشکل listen(*,) failed: Address already in use دستورات زیر را اجرا نمایید:

ps xua | grep -i dovecot | grep -v grep | awk '{print $2}' | xargs kill -9
/etc/init.d/dovecot restart