Ansible Role: exim4 (send only)

This role installs Exim4 (send only) and manages email addresses on Debian/Ubuntu Linux servers.

Requirements

None

Dependencies

None.

Installation

To install the role, run the following command:

$ ansible-galaxy install tschifftner.exim4_sendonly

Example Playbook

Here are the available variables with their default values (see defaults/main.yml):

 exim4_sendonly_email_addresses:
   root: '[email protected]'

An example of a playbook looks like this:

    - hosts: webservers

      roles:
         - { role: tschifftner.exim4_sendonly }

Use Smart Proxy

To configure the Smart Proxy settings, you can use these variables:

exim4_sendonly_enable_tls: true
exim4_sendonly_smarthost: ''
exim4_sendonly_username: ''
exim4_sendonly_password: ''

Use as standalone email sender

Set Reverse DNS for IPv6

Find your IPv6 address with:

ifconfig eth0

Select the IP address ending with ::2/64 Scope:Global.

Also, remember to add a AAAA record for this IPv6 address!

Set SPF Records

For the DNS TXT record, use:

v=spf1 a mx -all
v=spf1 a mx a:{{ ansible_fqdn }} -all

Exim Commands

Here is a summary of useful Exim commands:

• To see a summary of all emails:

mailq | exiqsumm

• To print a list of messages in the queue:

exim -bp

• To remove a single message:

exim -Mrm {message-id}

• To delete all messages from the queue:

exim -bp | awk '/^ *[0-9]+[mhd]/{print "exim -Mrm " $3}' | bash

Test Email Sending

You can test email sending with these commands:

echo "This is a testmail." | mail -s "Testmail" root
echo "This is a testmail." | mail -s "Testmail" your@email.com

Supported Operating Systems

This role supports:

• Debian 9 (Stretch)
• Debian 8 (Jessie)
• Ubuntu 18.04 (Bionic Beaver)
• Ubuntu 16.04 (Xenial Xerus)

Required Ansible Version

You need Ansible version 2.5 or higher.

License

MIT License

Author Information

• Tobias Schifftner, ambimax® GmbH