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4.6 Sendmail Macros

Sendmail macros are referenced exactly the same way they are in ‘sendmail.cf’ configuration file, i.e. ‘$name’, where name represents the macro name. Notice, that the notation is the same for both single-character and multi-character macro names. For consistency with the Sendmail configuration the ‘${name}’ notation is also accepted.

Another way to reference Sendmail macros is by using function getmacro (see section Sendmail Macro Access Functions).

Sendmail macros evaluate to string values.

Notice, that to reference a macro, you must properly export it in your MTA configuration. Attempt to reference a not exported macro will result in raising a e_macroundef exception at the run time (see uncaught exceptions).

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