Identity

Unit: dovecot.service
Config: /etc/dovecot/dovecot.conf, /etc/dovecot/conf.d/ (include-based)
Logs: journalctl -u dovecot, /var/log/dovecot.log (if configured)
Mail storage: Maildir (~/Maildir/) or mbox (/var/mail/)
Ports: 143 (IMAP), 993 (IMAPS), 110 (POP3), 995 (POP3S), 24 (LMTP local)
User: dovecot (daemon processes), dovenull (login process pre-auth)
Distro install: apt install dovecot-imapd dovecot-pop3d / dnf install dovecot

Key Operations

Operation	Command
Status	`systemctl status dovecot`
Test / dump config	`doveconf -n` (non-defaults only); `doveconf -a` (all settings)
Reload after config change	`sudo systemctl reload dovecot`
Restart	`sudo systemctl restart dovecot`
Test user authentication	`doveadm auth test <username>`
List user's mailboxes	`doveadm mailbox list -u <user>`