sendmail, 4th Edition

Required Macros (V8.6 and Earlier)

Table 21-3 shows the sendmail macro names that must (prior to V8.6) be given values in the configuration file.

Table 21-3. Required macros

Macro	§	Description	As of V8.7
$e	SmtpGreetingMessage on page 1093	The SMTP greeting message	The SmtpGreetingMessage option
$j	$j on page 830	Official canonical hostname	Automatically defined
$l	UnixFromLine on page 1113	Unix From format	The UnixFromLine option
$n	$n on page 836	Name used for error messages	Automatically defined
$o	OperatorChars on page 1062	Delimiter operator characters	The OperatorChars option
$q	$q on page 840	Format of the sender’s address	No longer used

Each macro is described at the end of this chapter, in Alphabetized sendmail Macros on page 798. Prior to V8.7, failure to define a required macro could have resulted in unpredictable problems. Beginning with V8.7 sendmail, no macros are required. Some are predefined^[304] for you by sendmail, and others have become options.

^{[304] *} But you still might need to declare an occasional macro in your configuration file to solve unusual problems.