Setting up Dovecot

Note this goes with the Postfix guide.

Installation & Configuration

You could run the IMAP server on another system/container, but as the passwords are managed locally, for now, in the Postfix guide, there’s no other choice. It also needs to point on the same Maildir location anyway.

apt -y install dovecot-imapd
cd /etc/dovecot/
cp -pi dovecot.conf dovecot.conf.dist
cd conf.d/

cp -pi 10-auth.conf 10-auth.conf.dist
vi 10-auth.conf

disable_plaintext_auth = yes

auth_mechanisms = plain login

cp -pi 10-mail.conf 10-mail.conf.dist
vi 10-mail.conf

mail_location = maildir:~/Maildir

cp -pi 10-master.conf 10-master.conf.dist
vi 10-master.conf

DISABLE imaps
DISABLE pop3*
DISABLE submission* (WTF we already got that with postfix)

  # Postfix smtp-auth
  unix_listener /var/spool/postfix/private/auth {
    mode = 0666
    #user = postfix
    #group = postfix
  }

cp -pi /etc/dovecot/conf.d/10-ssl.conf /etc/dovecot/conf.d/10-ssl.conf.dist
#ls -lhF /etc/ssl/certs/ssl-cert-snakeoil.pem
#ls -lhF /etc/ssl/private/ssl-cert-snakeoil.key
ls -lhF /etc/letsencrypt/live/DOMAIN.TLD/fullchain.pem
ls -lhF /etc/letsencrypt/live/DOMAIN.TLD/privkey.pem
vi /etc/dovecot/conf.d/10-ssl.conf

ssl = yes
#ssl_cert = </etc/ssl/certs/ssl-cert-snakeoil.pem
#ssl_key = </etc/ssl/private/ssl-cert-snakeoil.key
ssl_cert = </etc/letsencrypt/live/DOMAIN.TLD/fullchain.pem
ssl_key = </etc/letsencrypt/live/DOMAIN.TLD/privkey.pem
#since v2.3
ssl_dh = </root/dh.pem

cp -pi 20-imap.conf 20-imap.conf.dist
vi 20-imap.conf

imap_client_workarounds = tb-extra-mailbox-sep

handy symlink,

cd ~/
ln -s /etc/dovecot

Operations

the Postfix auth needs to be ready

ls -lhF /var/spool/postfix/private/auth 

SystemD

systemctl restart dovecot

Docker & DIY

which dovecot
dovecot stop
ps auxww | grep dovecot
dovecot