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Incoming 550 MX records inaccessible for too long for domain

Posted on 2011-04-19
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Last Modified: 2012-05-11
We are having issues with a lot of emails that are sent externally to us aren't reaching us. We are getting some external emails, but not all. We are getting this error: Incoming 550 MX records inaccessible for too long for domain: example.com - psmtp. Please let us know what we can try to do to solve this problem.

Thanks in advanced,

Nathan
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Question by:murphyins
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Sudeep Sharma earned 2000 total points
ID: 35429111
When I see  "- psmtp" it means to me that either the client is using Postini or Goolge Apps for sending the emails to you.

Well lets get to the problem:
open this website:
http://www.kloth.net/services/dig.php

type in your domain in the domain box
Keep the server box Local
in "query " select NS and click on "Look it up" button

This would give you all you NS records.

Now do this query again, all the field would be same except the "Server" box
type in your domain in the domain box
Keep the server box "type you NS server result from above"
in "query " select NS and click on "Look it up" button

If you more than one server do the same for all the NS servers and all the NS server should give all the same result. In case if any of the NS server is failing you would see the emails not coming to you from many domains.

I hope that would help.

Sudeep
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