Sendmail Email Unable to send... do not know where to change this

[Vance Duke]

Here is the bounce back that I am getting.  I assume it is because the
Domain for the email address is Monitor (which is the machine name).  In the
NAGIOS.CFG I have set the Administrator Email address to
"vance.duke at imaginuity.com".

This error I am getting when trying to send mail from within Sendmail, and
this is the bounce back.

> The original message was received at Thu, 5 Dec 2002 15:56:13 -0600 from
root at localhost
>
>    ----- The following addresses had permanent fatal errors -----
> vance.duke at imaginuity.com (reason: 501 <nagios at Monitor>... Sender domain
must exist)
>
>    ----- Transcript of session follows -----
> ... while talking to raq3.imaginuity.com.:
> >>> MAIL From:<nagios at Monitor> SIZE=354
> <<< 501 <nagios at Monitor>... Sender domain must exist
> 501 5.6.0 Data format error


This is the log information from the Sendmail log.

> Dec  5 15:56:13 Monitor sendmail[4267]: gB5LuDI04267: from=nagios at Monitor,
size=354, class=0, nrcpts=1, msgid=<200212052156.gB5LuDI04267 at Monitor>,
relay=root at localhost
> Dec  5 15:56:13 Monitor sendmail[4270]: gB5LuDI04267:
to=vance.duke at imaginuity.com, ctladdr=nagios at Monitor (500/500),
delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=30354,
relay=raq3.imaginuity.com. [216.234.235.10], dsn=5.6.0, stat=Data format
error
> Dec  5 15:56:13 Monitor sendmail[4270]: gB5LuDI04267: gB5LuDH04270: DSN:
Data format error

I do not know if this a Nagios issue or a Sendmail issue, and any help would
be appreciated.

Thanks,
Vance Duke



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