Sun Microsystems Sun Workstation 100U System Manager's Manual page 343

SendmaU Installation and Operation Guid.
13
(surrounded by question marks) are speeiftecl, at least one 01 the speeifted 8&1s must be
stated in the mailer definition for this header to be automatically output. II one 01
these headers is in the input it is re8ected
to
the output regardless of these 8ags.
Some headers have special semaaties that wiD be deseribed below.
&.1.1. 0 - let option
There are a number 01 "random" options that can be set from a configuration file.
Options are represented by single characters. The syntax 01 this line is:
00 value
This sets option
0
to be value. Depending on the option, value may be a string, an
integer, a boolean (with legal values "t", "T",
"I",
or "F"; the delault is TRUE), or a
time interval.
&.1.7. T - define trulted ulen
Trusted users are those users who are permitted to override the sender addre88
using the -t 8ag. These typically are "root," "uucp," and "network," but on some
users it may be convenient to extend this list to include other users, perhaps to support
a separate UUCP login lor each host. The syntax 01 this line is:
TUBer 1 uBert ...
There may be more than one 01 these lines.
&.1.8.
P -
precedence definition
Values (or the "Precedence:" field may be defined using the P control line. The
syntax 01 this field is:
Pname=num
When the name is round in a "Precedence:" field, the message class is set to num.
Higher numbers mean higher precedence. Numbers less than zero have the special pr~
perty that error messages will not
be
returned. The delault precedence is zero. For
example, our list or precedences is:
Pfirst-class=O
Pspecial-delivery= 100
Pjunk=-lOO
&.1. The Semantics
This section describes the semantics of the configuration file.
&.1.1. Special macrol, conditionals
Macros are interpolated using the construct
tz,
where
%
is the name or the macro
to be interpolated. In particular, lower
C38e
letters are reserved to have special seman-
tics, used to pass inrormation in or out 01 ,endmail, and some special characters are
reserved to provide conditionals, etc.
The lollowing macros mu,' be defined to transmit inlormation into ,en4mtJil:
e The SMTP entry message
J
The "official" domain name lor this site
1 The rormat 01 the UNIX from line
n
The name 01 the daemon (lor error messages)
o The set or "operators" in addresses
q
delault lormat 01 sender addresa
The •• macro is printed out when SMTP starts up. The ftrst word must be the
tJ
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