Adding New Mailers Or Rulesets

   Sometimes you may need to add entirely new mailers or rulesets. They should be introduced with the constructs MAILER_DEFINITIONS and LOCAL_RULESETS respectively. For example:

MAILER_DEFINITIONS
Mmymailer, ...
...

LOCAL_RULESETS
Smyruleset
...

        Local additions for the rulesets srv_features, try_tls, tls_rcpt, tls_client, and tls_server can be made using LOCAL_SRV_FEATURES, LOCAL_TRY_TLS, LOCAL_TLS_RCPT, LOCAL_TLS_CLIENT, and LOCAL_TLS_SERVER, respectively. For example, to add a local ruleset that decides whether to try STARTTLS in a sendmail client, use:

LOCAL_TRY_TLS
R...

Note: you don't need to add a name for the ruleset, it is implicitly defined by using the appropriate macro.