tcpserver and dns

[M.B.]

from the tcpserver man pages...

-llocalname
          Do not look up the local host name; use  localname  for
          TCPLOCALHOST.

Does this mean that it queries our DNS server for the local
host's name during inbound mail delivery?

If so, an    -l`hostname`    would probably be quicker and
lighten load on the DNS server, right?

Mike.

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