Mail delivery failing with 450

[James Pifer <jep@xxxxxxxxxxxxxxxx>]

I'm not sure why this started, but apparently I'm having a DNS problem.
Yesterday mail started bouncing with this error:
450 Unable to find obrien-pifer.com

I think the messages eventually get delivered, but not sure. I guess
I'll see if this one makes the list. 

I checked my domain using http://www.checkdns.net/ and it gives me a
couple warnings. One is that there's no MX record, but there is. 

I use a smarthost for sending mail. 

My DNS records are: http://www.obrien-pifer.com/mydns.txt

Anyone see any problems in my DNS records?

Thanks,
James



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