Recursive Queries Error

Not sure why this has just begun happening hasn't been an issue in the past. We did just move from in-house exchange server to Office 365. I check the domain in question at and get the following notice:
LVL 17
WORKS2011Managed IT, Cyber Security, BackupAsked:
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Jon BrelieSystem ArchitectCommented:
You should not allow recursive queries on public servers.  It basically means that your DNS server will query other DNS servers in order to resolve any domain queried and pass the info back to the requesting client.

You want your DNS servers to say, "I don't know" and leave it at that when queried to resolve domains that it is not authoritative for.  (ie: make sure you aren't using the same dns server for internal and external.)
Vasil Michev (MVP)Commented:
So what did you change after moving to O365? The MX record? Or did you "delegate" the domain DNS to O365? If the second, the above warning is expected, you are effectively using a shared DNS service now.
WORKS2011Managed IT, Cyber Security, BackupAuthor Commented:
Something worth mentioning is our ISP had issues on the static IP they gave us. Strange, never seen it before there was a layer 3 device holding a blacklisted IP address on the old static IP. The only way our ISP could get Office 385 to send email was put us on a different static IP. Due to this nothing has changed on our server and we manually configured DNS at Network Solutions.

@Vasil Michev (MVP) we did change the MX records to point to Microsoft. We did this manually at Network Solutions.

@John, our servers been online 4-5 years and never had any issues.
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WORKS2011Managed IT, Cyber Security, BackupAuthor Commented:
The IP's in question are owned by Network Solution.  ['']   [TTL=7200]  ['']   [TTL=7200]

Interesting this wasn't an issue on the other static IP.

Is this anything I should be concerned with? My main goal is no more bounced email while sending email from Office 365. Email is working fine now, however, I prefer proactive approach rather than break-fix.
Jon BrelieSystem ArchitectCommented:
No, if you are using registrar DNS servers, then the message you received is completely expected and safe to ignore.

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Jon BrelieSystem ArchitectCommented:
As stated, the warning you're receiving is expected and safe to ignore when using registrar dns servers.
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