Failed to Send Notification

adi yesaya adiyesaya at gmail.com
Fri May 11 13:01:39 CEST 2007


Dear Nagios-ers,

I tried to send email notifications, some succeed, some not. The ones which
failed, had this error message:

   ----- Transcript of session follows ------------------------------------

... while talking to fallback.nl.uu.net.:

<<< 550-Verification failed for <nagios at localhost.localdomain>

<<< 550-Domain localhost.localdomain not found in DNS

<<< 550 Sender verify failed



--l3B8Q822004500.1176279968/localhost.localdomain

Content-Type: message/delivery-status



Reporting-MTA: dns; localhost.localdomain

Received-From-MTA: DNS;



Final-Recipient: RFC822;

Action: failed

Status: 5.1.1

Remote-MTA: DNS; fallback.nl.uu.net

Diagnostic-Code: SMTP; 550-Verification failed for <
nagios at localhost.localdomain>
Last-Attempt-Date: Wed, 11 Apr 2007 10:26:08 +0200
----------------------------------------------------------------------

The Nagios i set up has only a private ip address, not a public one. Is this
the cause why some email servers reject the notification?
Does anyone knows how to handle this problem?

Thanks,
Adi Yesaya
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