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8.2

SOA fails for external domains with smtpdiag

Asked by sunstonecircuits in Email Servers, Linux Networking, Domain Name Service (DNS)

Tags: soa, smtpdiag, email

We have two sits. Our offices and manufacturing in the middle of nowhere and a co-location that houses our website,database and dns server.

For some reason, previous management set up the linux firewall at the colocation as our dns server. NS1, NS2 are pointed to this server. This server is not part of the domain or connected to our local network in our office.

our mx records point to postini for incoming mail. External mail does not go through postini

When I run smtpdiag i get this error sending to external domains

Checking TCP/UDP SOA serial number using DNS server [69.30.46.55].
Failed: DNS server [69.30.46.55] may be down.
DNS server [69.30.46.55] did not return a valid SOA record.
SOA serial number match: Failed with one or more failures.

internal emails on our domain are fine.
Checking TCP/UDP SOA serial number using DNS server [69.30.46.55].
Failed: DNS server [69.30.46.55] may be down.
DNS server [69.30.46.55] did not return a valid SOA record.
SOA serial number match: Failed with one or more failures.

How can I fix this?
[+][-]06/22/09 10:05 AM, ID: 24684352Accepted Solution

Your question has an Asker Certified™ answer! sunstonecircuits verified that this solution worked for them--which means it will likely work for you, too. Click to view the solution free for 30-days now.

About this solution

Zones: Email Servers, Linux Networking, Domain Name Service (DNS)
Tags: soa, smtpdiag, email
Sign Up Now!
Solution Provided By: jar3817
Participating Experts: 1
Solution Grade: A
 
[+][-]06/22/09 09:31 AM, ID: 24684054Expert Comment

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[+][-]06/22/09 09:48 AM, ID: 24684184Author Comment

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[+][-]06/22/09 09:49 AM, ID: 24684202Author Comment

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[+][-]06/22/09 09:51 AM, ID: 24684221Expert Comment

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[+][-]06/22/09 09:53 AM, ID: 24684241Author Comment

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[+][-]06/22/09 12:25 PM, ID: 24685649Author Comment

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