Follow the Modoboa install instructions

Follow the roundcubemail install instructions.

Roundcube install is so "one and done" (like Modoboa) in my experience. This article was helpful.

localhost:5432:roundcubemail:roundcube:CHANGEME
localhost:5432:modoboa:modoboa:CHANGEME
localhost:5432:amavis:amavis:CHANGEME
localhost:5432:spamassassin:spamassassin:CHANGEME

• modoboa, amavis: /srv/modoboa/instance/instance/settings.py
• roundcubemail: <roundcubemail>/config/config.inc.php

make stop-services

make stop-services

make dump
rsync -azP OLD:modoboa-mail-migration/dumps .

See Upgrade from 1.17.0 to 2.0.0 fails - psycopg2.errors.FeatureNotSupported: cannot alter type of a column used by a view or rule.

make restore
make drop-dkim-view

See Modoboa upgrade instructions for reference. Since the NEW server is built with latest Modoboa you should just need

sudo -u <modoboa_user> -i bash
source <virtuenv_path>/bin/activate
cd <modoboa_instance_dir>
python manage.py migrate
python manage.py collectstatic
python manage.py check --deploy
exit

make create-dkim-view

Create a domains.make with a list of domains to sync, e.g.,

DOMAINS := \
	domain.com

You can rerun this as needed if mail is still being delivered to OLD server

make sync-mail

sudo bash
scp -r morison.io:dkim/\* /var/lib/dkim
chown opendkim:opendkim /var/lib/dkim/*

make start-services

Likely something will be broken with Modoboa and/or Roundcubemail. Places to look:

• /var/log/mail.log
• /var/log/nginx/*.log
• /var/log/uwsgi/app/*.log

You might need to temporarily change DEBUG = True in -/srv/modoboa/instance/instance/settings.py and sudo systemctl restart uwsgi to get debug messages in the browser. Be sure to revert asap when done.

For debug, it's useful to iron things out with a scratch domain, like mail-test.domain.com. For the live migration, you'll need to change MX for the domains to the NEW server.