Hi,

For the past few days, email from my family's domain kudlervaughn.net (for which Google Apps servers as the MX) has been bouncing with the error message  "DNS Error: Domain name not found".
Registration has not lapsed (in fact, we just renewed with GoDaddy with a month to spare). We're not on any RBLs that I can find. We haven't changed the DNS settings since moving over to Google Apps six months or so back. A Host command through Google's own DNS came up perfect. MXToolbox found the mail servers (both Google's and the backups) just fine. DNSStuff ran a traceroute with no problems. So what gives?

Please help.

I didn't find the right solution from the Internet.

References:-
https://bit.ly/2J3yuxb
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Thanks