> Is  there  any problem if I use the domain name only in the official
> host name?

Yes.  It  is far preferable to use the canonical host name, or another
valid host name that resolves to the host's IP on the public Internet.

Using  just  the  domain name will create DNS issues resulting in your
server being blocked by sensitive anti-spam systems, _unless_ you have
an  A  record  for  the  zone  origin  (example.com)  pointing  to the
mailserver  IP (this is generally not the case--rather, example.com is
an expected alias for www.example.com).

You  should  never use local settings that extend incorrectly into the
public DNS space.

--Sandy


------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
e-mail: [EMAIL PROTECTED]

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