Variables for smarthost:
- exim4_is_smarthost boolean, enable to use smarthost config.
- exim4_smarthost_relay_for list of ansible hostnames that are allowed to relay.
For smarthost clients:
- exim4_smarthost smarthost domain.
- exim4_use_client_certificates boolean, enable to generate client certificates.
- exim4_configtype should be set to 'satellite' for clients or use the following:
- exim4_partial_smarthost_percentage send only defined percentage of traffic to smarthost.