Azure Email Communication service can not verify my custom domain

Based on the information provided and the steps you've already taken, here are some detailed steps to troubleshoot and resolve the TXT record verification issue with Azure Email Communications Service:

Step 1: Verify TXT Record Creation

1. Check DNS Zone in Azure:
   • Go to the Azure Portal.
   • Navigate to DNS Zones.
   • Select your domain's DNS zone.
   • Verify that the TXT record you created is present and correctly formatted.
2. Correct Format for TXT Record:
   • The TXT record should be in the format required by Azure. Typically, it looks something like this:

     
          Name: @ (or your domain name without the http:// or https://)
     
          Type: TXT
     
          Value: ms=<verification_code>
     
          TTL: 3600 (or default)
     
     

Step 2: Propagation Time

1. Wait for DNS Propagation:
   • DNS changes can take some time to propagate. Although many changes propagate within minutes, it can take up to 48 hours for changes to fully propagate.
   • Use tools like MXToolbox or DNSChecker to check the propagation status of your TXT record.

Step 3: Ensure No Conflicting Records

1. Check for Conflicting TXT Records:
   • Make sure there are no conflicting TXT records that might interfere with Azure's verification process.
   • Remove any old or duplicate TXT records that might be related to previous verification attempts.

Step 4: Verify Domain Settings in Azure

1. Ensure Correct Subscription and Resource Group:
   • While you mentioned you only have one subscription, ensure that the domain and the Email Communication Service (ACS) are indeed within the same subscription.
   • Verify that the domain is correctly associated with the resource group that contains your ACS.

Step 5: Troubleshoot Specific to Azure Email Communication Service

1. Recreate the TXT Record:
   • Sometimes, deleting and recreating the TXT record can resolve issues, especially if there were any typos or format errors initially.
   • Ensure you copy the exact verification value provided by Azure.

Step 6: Verify with Azure Support

1. Contact Azure Support:
   • If the above steps do not resolve the issue, consider reaching out to Azure Support for assistance.
   • Provide them with the details of your setup, the exact TXT record you created, and any error messages you're seeing.

By following these steps, you should be able to resolve the issue and successfully verify your domain for Azure Email Communication Service.