MASQUERADE_DOMAIN_FILE mc Macro
In masquerading other domains, as with MASQUERADE_DOMAIN, it can prove advantageous to store the list of masqueraded domains in an external file. The MASQUERADE_DOMAIN_FILE mc macro allows you to do just that:
MASQUERADE_DOMAIN_FILE(`/etc/mail/domains')
Essentially, all that MASQUERADE_DOMAIN_FILE does is
read the external file using the F configuration command.
As a consequence, you can add an F-style argument to its
declaration:
MASQUERADE_DOMAIN_FILE(`-o /etc/mail/domains')
Here, we added a -o
to make the existence of the file optional.
Note that the file specified with MASQUERADE_DOMAIN_FILE is read only once, when sendmail first starts.
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