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I have a mail problem that I suspect is really a DNS problem.

My hosting company has apparently given me the subdomain li173-195.members.linode.com. I have another domain, woollymammothlabs.com, that points to the same IP as li173-195.members.linode.com.

When I send mail to jason@li173-195.members.linode.com, I get it. When I said mail to jason@woollymammothlabs.com, I get an undeliverable message.

What am I missing?

(I'm on Ubuntu and I'm using Postfix.)

Thanks, Jason

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where are you sending email from? –  Philip Reynolds Sep 6 '10 at 21:29

1 Answer 1

up vote 1 down vote accepted

It probably is a DNS problem.

When I search for the MX record for woollymammothlabs.com I get IP-address 66.11.225.78. This is not the address of your server at li173-195.members.linode.com, which is 173.230.133.195. Your mail for *@woollymammothlabs.com is delivered at 66.11.225.78.

Change the MX record for woollymammothlabs.com then your problem will be solved (if your postfix configuration is correct).

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Definitely DNS, your MX is set to m1.dnsix.com. This is a server farm wich adsresses in the 66.11.255.0/24 address range. Fix your MX. –  BillThor Sep 6 '10 at 21:44
    
Fixing my MX record fixed it. Thank you! –  Jason Swett Sep 8 '10 at 16:10
    
You're welcome! –  Karst Lok Sep 8 '10 at 18:49

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