[CentOS] Mail delivery failing with 450

Sat Mar 7 20:32:49 UTC 2009
James Pifer <jep at obrien-pifer.com>

> $ whois obrien-pifer.com
> ...
>    Domain Name: OBRIEN-PIFER.COM
>    Registrar: WILD WEST DOMAINS, INC.
>    Whois Server: whois.wildwestdomains.com
>    Referral URL: http://www.wildwestdomains.com
>    Name Server: NS1.OBRIEN-PIFER.COM
>    Name Server: NS2.OBRIEN-PIFER.COM
> 
>    Server Name: NS1.OBRIEN-PIFER.COM
>    IP Address: 70.62.90.185
>    Registrar: WILD WEST DOMAINS, INC.
>    Whois Server: whois.wildwestdomains.com
>    Referral URL: http://www.wildwestdomains.com
> 
> 
>    Server Name: NS2.OBRIEN-PIFER.COM
>    IP Address: 70.62.90.185
>    Registrar: WILD WEST DOMAINS, INC.
>    Whois Server: whois.wildwestdomains.com
>    Referral URL: http://www.wildwestdomains.com
> 
> 
> 
> I'm surprised the registrar let you register two HOST names for the same 
> IP, they aren't supposed to do that.

I removed the other two NS records. I also raised the TTL as suggested. 

Thanks for all the help. 

James