Topic: [FAQ] How to debug Dovecot and Sieve rules.
This tutorial is used to explain how to debug Dovecot (POP3/IMAP server) and sieve rules in iRedMail. If they don't work for you, please post a new topic in iRedMail General Technical Support forum.
What do they do
Dovecot provides POP3/POP3S, IMAP/IMAPS services.
Sieve is used to filter mails.
How to debug them
Enable debug mode in dovecot config file: /etc/dovecot.conf (RHEL/CentOS) or /etc/dovecot/dovecot.conf (Debian/Ubuntu).
mail_debug = yes
Restart dovecot service to turn on debug mode.
# /etc/init.d/dovecot restart
You can now start to monitor log files:
Dovecot log file is /var/log/dovecot.log.
Sieve log file is /var/log/sieve.log.
Variables in dovecot config file: Variables