New and Revised m4 Configuration Macros for sendmail (System Administration Guide: Resource Management and Network Services)

System Administration Guide: Resource Management and Network Services

New and Revised `m4` Configuration Macros for `sendmail`

This section contains a table of new and revised m4 configuration macros for sendmail. Use the following syntax to declare these macros.

symbolic_name(`value')

Table 27–13 New and Revised m4 Configuration Macros for sendmail


`m4` Macro	Description
`FEATURE()`	For details, refer to Changes to the `FEATURE()` Declaration.
`LOCAL_DOMAIN()`	This macro adds entries to class `w` (`$=w`).
`MASQUERADE_EXCEPTION()`	A new macro that defines hosts or subdomains that cannot be masqueraded.
`SMART_HOST()`	This macro can now be used for bracketed addresses, such as `user@[host]`.
`VIRTUSER_DOMAIN()` or `VIRTUSER_DOMAIN_FILE()`	When these macros are used, include `$={VirtHost}` in `$=R`. As a reminder, `$=R` is the set of host names that are allowed to relay.