Sendmail Error

I think its something along the lines of the hostname of
your
mailserver.
When sending out mail your mailserver will report to the
other end its
hostname.
The other end may try to resolve this, if it cant it may
report an
error.

-art

>>> krishnadineshwargmail.com 09/25/06 10:12 PM
>>>
Hi All,

I am using mail server on Redhat Linux 7 having
Sendmail-8.11.2-14
when i am sending any mail it is successfull deliverd by
getting a
mail from Mailer-Daemon that



The following addresses had permanent fatal errors -----

    (reason: 553 sorry, your envelope sender domain must
exist (#5.7.1))


Sep 25 15:16:30 localserver sendmail[26990]: k8P9kSb26990:
to=krishnadineshwargmail.com, ctladdr=root (0/0),
delay=00:00:02,
xdelay=00:00:01, mailer=relay, pri=30044,
relay=mail.relay.com.
[203.122.58.62], dsn=5.6.0, stat=Data format error


is any one to give me the hint how to solve it, what
exacallty the
problem.


Thanks,

Dinesh
New Delhi

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