Domain Validation Check Failed

I just couldn t find the answer anywhere.

Domain validation check failed. Let s encrypt uses a web based domain control validation dcv which means that it needs to make contact with the web server in order to validate it. If it is blocked by a firewall let s encrypt will not be able to validate your server and will fail on your domain. The following error was returned from the certificate validation process.

Thank you in advance. The cisco application centric infrastructure design guide white paper recommends that this option be turned on but it is a once only option. I m sure that this is something relatively easy to resolve.

If you still can t verify the domain contact microsoft online services support to resolve the issue. The domain exists in another microsoft cloud service. In the azure active directory module for windows powershell you get a validation error message when you run a cmdlet.

The domain is federated with microsoft exchange online. Once it is turned on you can t turn. For example this domain exists in live edu.

There is a global aci option system system settings fabric wide setting enforce domain validation that forces aci to check that an epg is linked to a domain. This issue occurs if one of the following conditions is true. Now you can look in the message header itself to figure out why validation failed.

Friday july 29 2016 11 31 pm. Sender domain validation check in exchange online. Hopefully this will give a heads up to users there s something wrong with the.