All hosts should be relaying email through our primary mx host (currently 'mail.archlinux.org'). See [docs/email.md](./docs/email.md) for full details.
#### Note about opendkim
The opendkim DNS data has to be added to DNS manually. The roles verifies that the DNS is correct before starting opendkim.
The file that has to be added to the zone is `/etc/opendkim/private/$selector.txt`.
### Putting a service in maintenance mode
Most web services with a nginx configuration, can be put into a maintenance mode, by running the playbook with a maintenance variable:
