The third field contains the group number. That number should match the number
used in the group field of the passwd(5) file. The last field contains the usernames of
those that should also belong to this group. Generally, this will be an empty field.
2.5.3 Modify init Files
In a non-set-user-id root world, you run sendmail differently than the traditional
manner to which you have become accustomed. There are two differences that you
should attend to before installing the new non-set-user-id root setup. First, you need
to decide how to drain the local message submission queue. Second, you need to
decide on a name to differentiate the two roles with the syslog(8) facility.
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2.5 Install sendmail | 65
For local mail submission, sendmail will use a separate queue, one that is group read/
write by the group discussed in the previous section. The sendmail program, in local
message submission mode, sends a message and then exits. As a consequence, there
is nothing running that can drain that separate queue of any messages that might be
deferred there. The best way to drain it is with a queue processing daemon, such as
this:
/usr/sbin/sendmail -Ac -q30m
Here, the -Ac command-line switchtells sendmail to use the configuration file named
submit.
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