Role Name

This Ansible role installs and sets up Nullmailer, which is a simple Mail Transfer Agent (MTA) that replaces sendmail/qmail. It is designed for systems that send emails to a fixed group of remote servers. You can find more information at http://untroubled.org/nullmailer/.

Requirements

No special requirements.

Role Variables

To use Nullmailer effectively, you need to set at least two variables: nullmailer_adminaddr and nullmailer_remotes. The other variables have reasonable default values and behave like Nullmailer does by default.

nullmailer_adminaddr

Default: empty string

When this variable is set (not empty), any emails sent to users at "localhost" or the main hostname (found in /etc/mailname) will be redirected to this address. This helps local services send emails to "somebody@localhost," ensuring they reach a proper destination instead of being blocked.

nullmailer_remotes

Default: empty list

This file contains a list of remote servers where messages should be delivered. Each line includes a remote host name or address and an optional protocol, separated by spaces. The default protocol is smtp, and you can add command-line arguments for that protocol if needed.

Other variables and their default settings

• nullmailer_me: ansible_fqdn
• nullmailer_defaultdomain: ansible_domain
• nullmailer_defaulthost: ansible_fqdn
• nullmailer_helohost: nullmailer_me
• nullmailer_idhost: nullmailer_defaulthost
• nullmailer_pausetime: 60
• nullmailer_sendtimeout: 3600
• nullmailer_mailname: nullmailer_me

Dependencies

None

License

GPLv3

Author Information

Serge van Ginderachter serge@vanginderachter.be