$=t
List trusted users V8.7 and later
Trusted users are those who can run
sendmail with the -f
command-line switch
to specify who sent the message, without generating
a warning. Prior to V8.6
sendmail, such users had to
be listed with the T
command (Declare trusted users (ignored V8.1 through
V8.6)
on page 174). That command was ignored in V8.1
through V8.6, and with those versions anyone could
use the -f
switch. Beginning with V8.7
sendmail, the T
command was
reintroduced, but it now causes the list of trusted
users to be added to the class $=t
. Now, any user who
uses the -f
switch and who is not listed in class $=t
will cause the
following error message (X-Authentication-Warning: on page
1167) to be included in the outgoing mail message
(if the PrivacyOptions
option, PrivacyOptions on page 1065, has
authwarnings
set):
X-Authentication-Warning: user set sender to other using -f
See FEATURE(use_ct_file)
(FEATURE(use_ct_file) on page 643) for an easy way to add users to this
class using the m4
technique.
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