$z
The recipient’s home directory All versions
The $z macro holds
the location of the local user’s home directory.
This macro is given a value only if the delivery
agent has the F=w
flag set (F=w on page
781)[329] and if delivery is to a user (rather
than a file or a program). The home directory is
looked up using the method defined by the MailboxDatabase option
(MailboxDatabase on page
1042)[330] and that directory’s location is placed
into this $z
macro.
The sendmail program uses
$z to access a
user’s ~/.forward file and to
save failed mail to a user’s
~/dead-letter file.
$z can be passed in
the A= equate to
a custom-written local delivery agent. One reason to do
so would be to deliver mail to a user’s home
directory rather than to a central spool directory.
$z is also very
useful with the ForwardPath option (ForwardPath on page 1034).
$z is transient. If
it is defined in the configuration file or the
command line, that definition will be ignored by
sendmail. Note that a
$& prefix
is necessary when you reference this macro in rules
(that is, use $&z, not $z).
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