CODEWITHSUNDEEP
office365
Daansk44
Daansk44

Reputation: 497

How to add a ptr (reverse DNS) record for office 365

I am a bit stuck. I have set up an Office 365 installation with the proper settings. But when I send an email I get the message. Incorrectly configured PTR record. All the DNS settings are correct (at least that indicates office 365).

The website is running on a different server of course. And we do not use the nameserver of Office 365.

So my question, where do I need to add the PTR record and what value does it have?

I have added the DNS record below :)

enter image description here

Upvotes: 1

Views: 25362

Answers (4)

Wolfgang Jacques
Wolfgang Jacques

Reputation: 769

I am just investigating email delivery problems for a customer with Microsoft 365 and came across the below extremely useful sites which explain how to check PTR records and what they mean in the first place.

PTR records are stored in the .arpa TLD zone which is managed bei IANA. Some ISPs are able to store records there and they don't do it without good reasons, it seems.

In-depth reading: The PTR record and How to lookup PTR records, both at at nslookup.io - these guys know their way around!

Upvotes: 1

Jesus
Jesus

Reputation: 1

if the domain is on HOSTGATOR and you change the DNS for handling emails to office 365. The solution is go toHOSTGATOR CPANEL > email routing > select domain (that is used on office365) and change it to remote.

Upvotes: 0

bkqc
bkqc

Reputation: 1021

According to Exchange 365 official documentation, it looks like this behaviour is by design. Exchange 365 does not support configuring the PTR because it is using multiple IP addresses and it seems that because of DNS limitations, they could not list all IPs in PTR records.

Though quite frankly, according to the example, I can't figure out why they need to use different names for the HELO and the PTR...

More information can be found here.

Upvotes: 3

Jose Paredes
Jose Paredes

Reputation: 339

I've been investigation a bit around your question and found that not all the DNS providers allows to register PTR records, example: Freenom and GoDaddy do the job for their customers. Cantact your DNS provider for help if the PTR type isn't listed in the DNS console

Upvotes: 0

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