Changes to the MAILER() Declaration <meta http-equiv="refresh" content="0;url='http://www.oracle.com/pls/topic/lookup?ctx=solaris11'"> From Version 8.12 of sendmail (System Administration Guide: Network Services)

System Administration Guide: Network Services

Changes to the `MAILER()` Declaration From Version 8.12 of `sendmail`

The MAILER() declaration specifies support for delivery agents. To declare a delivery agent, use the following syntax.

MAILER(`symbolic-name')

Note the following changes.

In this new version of sendmail, the MAILER(`smtp') declaration now includes an additional mailer, dsmtp, which provides on-demand delivery by using the F=% mailer flag. The dsmtp mailer definition uses the new DSMTP_MAILER_ARGS, which defaults to IPC $h.
Numbers for rule sets that are used by MAILERs have been removed. You now have no required order for listing your MAILERs except for MAILER(`uucp'), which must follow MAILER(`smtp') if uucp-dom and uucp-uudom are used.

For more information about mailers, refer to Mailers and sendmail. If you need to build a new sendmail.cf file, refer to Building the sendmail.cf Configuration File in Chapter 13, Mail Services (Tasks).