Nagios Support Forum

Posted: **Fri Feb 27, 2015 2:39 am**

Hi

Getting a below error when send a email using sendmail

OS : centos 6.5
nagios : nagios 4.0

dsn=5.6.0, stat=Data format error . it is getting only when email has been sent to yahoo id. i can able to send other email accounts.

Posted: **Fri Feb 27, 2015 10:06 am**

What E-mail accounts are you trying to send to that are failing? This error would generally indicate that the MTA is having issues relaying to the address you specified - often a name resolution problem. Can your Nagios server properly query the MX record for the domain you're trying to reach?

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