hi,
This is not a problem with PINE or DNS, but your sendmail configuration.
Check the /etc/mail/sendmail.cf file. There will be a
option for masquerading originating mail.
Here is the quote from the file:
************
If you wish to have mail appear to be from some host or location #
# other than the loacl host, set macro M to the name you wish to #
# masquerade as. This is also know as site hiding and was set using #
# the DY macro in previous releases of hp-ux. This might be used to #
# make mail appear as from a site rather than an individual host or #
# from a central mail hub. Note, however, that just making mail #
# appear to be from a different location does not mean that the #
# receipient will be able to reply to the email. If you use this feature #
# you will also need to be sure that you can reply to the email. #
# ***********
So, add the
DMxyz.com in the file instead of its current DM.
HTH
raj
Take it easy.