Office365 can't receive emails

Question

Office365 can't receive emails

Andrew Mueller 101

My email has been working since I set up Office 365 several years back (4, maybe). I can send emails no problem, but receive does not work (unless I use Office365 Online). When I use the Microsoft troubleshooter it says: "No MX records were found in DNS for SMTP domain " I look at Office 365 Admin and see a strange MX record:

Type: MX
Host Name: @
Point to address or value: 0 Axx-com.mail.protection.outlook.com
TTL: 1 Hour

Any idea what is going on?

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Answer 1

Andrew Mueller 101

Looks to me like, while Microsoft updated the renewal for the Office365 subscription, it did NOT update the domain registration. First time that happened and no real reason for it. I updated the subscription for the domain name and now I see an MX record, so looks like that will likely solve the issue.

Yuki Sun-MSFT 41,451 Reputation points Moderator

2021-03-19T05:38:08.847+00:00

Hi @Andrew Mueller ,

Thanks for sharing the update! By the way, if the issue indeed got resolved by this, you can click Accept Answer under your post to close this up. This can be beneficial to other users who read this thread. Thanks :)

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Answer 2

Andy David - MVP 159.7K MVP Volunteer Moderator

thats not strange :)
thats the default domain DNS records in 365

Does Axx.com have a mx record? Doesnt appear so. Thats the one that needs it.

https://mxtoolbox.com/SuperTool.aspx

Andrew Mueller 101 Reputation points

2021-03-18T12:06:23.043+00:00

It was all setup through an Office365 account - I never registered or created the domain itself, that was part of the price (I believe). Like I said, worked for 3-4 years without any problems. Where does Microsoft Register the MX records for the specific domains?
Andrew Mueller 101 Reputation points

2021-03-18T12:11:20.963+00:00

When I do a domain lookup, it shows the nameservers coming from DOMAINCONTROL.COM and registered DomainsByProxy
Andrew Mueller 101 Reputation points

2021-03-18T12:15:07.95+00:00

Also I notice the following:

Expires on: 2021-03-29
Registered on: 2017-03-29
Updated On: 2021-03-04

That is the date my email stopped working.
Andy David - MVP 159.7K Reputation points MVP Volunteer Moderator

2021-03-18T12:27:13.68+00:00

I would contact 365 support then if you didnt set that domain up. Its set to expire the month.

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Office365 can't receive emails

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