Unable to Add Mail From Address in Azure Communication Services (+Add Button Disabled)

Question

Unable to Add Mail From Address in Azure Communication Services (+Add Button Disabled)

Devs 0

Hi team,

I’ve successfully verified my custom domain turnqey.xyz under Azure Communication Services — with SPF, DKIM, and DKIM2 all showing as Verified. However, under Communication Services > Email > Mail From Addresses, the + Add button is disabled and I’m unable to add a new sender email address (like ******@turnqey.xyz).

Could you please clarify:

What are the exact conditions or permissions required for this option to be enabled?
Is there a specific SKU or Communication Service plan upgrade required for adding Mail From addresses?
If domain verification is complete, what else might block the ability to add a sender?

Thank you!

Prabhavathi Manchala 1,050 Reputation points Microsoft External Staff

2025-04-14T21:31:48.6766667+00:00
Hi Devs,

It’s great to hear that you’ve successfully verified your custom domain turnqey.xyz with ACS. Now, let’s address the issue with the + Add button being disabled under Mail from Addresses.

To enable the + Add button under Mail From Addresses, make sure you have the Email Communication Services Contributor role or higher on the ACS resource. Also, ensure your ACS resource has email capabilities enabled, and your custom domain is fully verified with SPF, DKIM, and DKIM2.

To check your role, go to Azure Portal > Your ACS Resource > Access Control (IAM) > View My Access.

You don't need any upgrade or special SKU to add Mail From addresses, it works by default if the Email channel is enabled. If email wasn’t selected when the ACS resource was created, you’ll need to enable it or recreate the resource with email support.

If domain verification is successful but the + Add button is still disabled, here are common causes:

If the portal doesn’t refresh right away after domain verification, try refreshing the page or using Incognito Mode.

It may take up to 15 minutes for sender address management to become available after DNS records are verified.

Make sure the email channel is fully initialized and not in an error or provisioning state.

If multiple verified domains exist, the system might not default to the one you want, so ensure your custom domain is set as default.

kindly go through the following documents for more details.

https://learn.microsoft.com/en-us/azure/communication-services/quickstarts/email/add-custom-verified-domains?pivots=platform-azp#verify-custom-domain

Troubleshooting Domain Configuration issues for Azure Email Communication Service - An Azure Communication Services concept document | Microsoft Learn
Prabhavathi Manchala 1,050 Reputation points Microsoft External Staff

2025-04-16T00:27:23.6266667+00:00

Hi Devs,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Prabhavathi Manchala 1,050 Reputation points Microsoft External Staff

2025-04-16T20:22:23.0933333+00:00

Hi Devs,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Devs 0 Reputation points

2025-04-17T11:51:07.5933333+00:00
Hi Prabhavathi Manchala

Thank you for the detailed guidance. I’ve gone through the recommended steps and confirmed the following:

The Email Communication Services Contributor role is assigned to me on the ACS resource.

Our ACS resource has email capabilities enabled.

The custom domain turnqey.xyz is fully verified with SPF, DKIM, and DKIM2 records showing as verified.

The email channel is active and initialized — no errors or provisioning issues are present.

We’ve waited beyond the advised 15-minute window after DNS record verification.

The page has been refreshed multiple times, including testing in Incognito Mode.

Our verified custom domain is correctly set as the default domain.

Despite all these checks, the + Add button under Mail From Addresses remains disabled.

Could you please assist in investigating this further on your end? If any backend refresh or intervention is needed, we’d appreciate your support in resolving this.

Looking forward to your guidance.

Thanks,
Dev
Deleted

This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
Siva Nair 1,475 Reputation points Microsoft External Staff

2025-04-22T05:01:26.9933333+00:00

Hi Devs,

Thanks for confirming all the mentioned point , As You have verified custom domain and you are facing issue with adding Mailfrom(+ Add disabled) , i would like to mention here Azure imposes default sending limits that restrict adding new MailFrom addresses. This limitation is in place just to ensure responsible email practices. To lift this restriction, you need to request an increase in your sending limits.

I would request you to follow the steps bellow in answer by TP where you will find step by step path to raise a ticket, and get your +add enabled.

Thanks

If you have any further assistant, do let me know.
Harshitha Veeramalla 891 Reputation points Microsoft External Staff

2025-04-25T06:35:55.93+00:00

Hi @Devs, just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Harshitha Veeramalla 891 Reputation points Microsoft External Staff

2025-04-25T12:26:02.6733333+00:00

Hi @Devs,
There was a recent update on the Email Communication Services, where you cannot create a new MailFrom address or enable the engagement tracking if you are on the default throttling limit.

Can you please confirm if you are on the default throttling limit? If so, you can submit a request to increase the throttling limit as mentioned in the documentation here https://learn.microsoft.com/en-us/azure/communication-services/concepts/service-limits#email then you will be able to use the aforementioned features.

As mentioned in the documentation here Enable User Engagement Tracking, to enable this feature, your resource should not be on the default sending limits. Can you please confirm if you got your email throttling limit increased?

For more information about the email throttling limit and how to increase it, you can check the documentation Email throttling limit
Harshitha Veeramalla 891 Reputation points Microsoft External Staff

2025-04-30T05:43:51.0533333+00:00

Hi Devs, just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.

1 answer

Your answer

Prabhavathi Manchala 1,050 Reputation points Microsoft External Staff

2025-04-14T21:31:48.6766667+00:00

Hi Devs,

It’s great to hear that you’ve successfully verified your custom domain turnqey.xyz with ACS. Now, let’s address the issue with the + Add button being disabled under Mail from Addresses.

To enable the + Add button under Mail From Addresses, make sure you have the Email Communication Services Contributor role or higher on the ACS resource. Also, ensure your ACS resource has email capabilities enabled, and your custom domain is fully verified with SPF, DKIM, and DKIM2.

To check your role, go to Azure Portal > Your ACS Resource > Access Control (IAM) > View My Access.

You don't need any upgrade or special SKU to add Mail From addresses, it works by default if the Email channel is enabled. If email wasn’t selected when the ACS resource was created, you’ll need to enable it or recreate the resource with email support.

If domain verification is successful but the + Add button is still disabled, here are common causes:

If the portal doesn’t refresh right away after domain verification, try refreshing the page or using Incognito Mode.

It may take up to 15 minutes for sender address management to become available after DNS records are verified.

Make sure the email channel is fully initialized and not in an error or provisioning state.

If multiple verified domains exist, the system might not default to the one you want, so ensure your custom domain is set as default.

kindly go through the following documents for more details.

https://learn.microsoft.com/en-us/azure/communication-services/quickstarts/email/add-custom-verified-domains?pivots=platform-azp#verify-custom-domain

Troubleshooting Domain Configuration issues for Azure Email Communication Service - An Azure Communication Services concept document | Microsoft Learn
Prabhavathi Manchala 1,050 Reputation points Microsoft External Staff

2025-04-16T00:27:23.6266667+00:00

Hi Devs,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Prabhavathi Manchala 1,050 Reputation points Microsoft External Staff

2025-04-16T20:22:23.0933333+00:00

Hi Devs,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Devs 0 Reputation points

2025-04-17T11:51:07.5933333+00:00

Hi Prabhavathi Manchala

Thank you for the detailed guidance. I’ve gone through the recommended steps and confirmed the following:

The Email Communication Services Contributor role is assigned to me on the ACS resource.

Our ACS resource has email capabilities enabled.

The custom domain turnqey.xyz is fully verified with SPF, DKIM, and DKIM2 records showing as verified.

The email channel is active and initialized — no errors or provisioning issues are present.

We’ve waited beyond the advised 15-minute window after DNS record verification.

The page has been refreshed multiple times, including testing in Incognito Mode.

Our verified custom domain is correctly set as the default domain.

Despite all these checks, the + Add button under Mail From Addresses remains disabled.

Could you please assist in investigating this further on your end? If any backend refresh or intervention is needed, we’d appreciate your support in resolving this.

Looking forward to your guidance.

Thanks,
Dev
Deleted

This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
Siva Nair 1,475 Reputation points Microsoft External Staff

2025-04-22T05:01:26.9933333+00:00

Hi Devs,

Thanks for confirming all the mentioned point , As You have verified custom domain and you are facing issue with adding Mailfrom(+ Add disabled) , i would like to mention here Azure imposes default sending limits that restrict adding new MailFrom addresses. This limitation is in place just to ensure responsible email practices. To lift this restriction, you need to request an increase in your sending limits.

I would request you to follow the steps bellow in answer by TP where you will find step by step path to raise a ticket, and get your +add enabled.

Thanks

If you have any further assistant, do let me know.
Harshitha Veeramalla 891 Reputation points Microsoft External Staff

2025-04-25T06:35:55.93+00:00

Hi @Devs, just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Harshitha Veeramalla 891 Reputation points Microsoft External Staff

2025-04-25T12:26:02.6733333+00:00

Hi @Devs,
There was a recent update on the Email Communication Services, where you cannot create a new MailFrom address or enable the engagement tracking if you are on the default throttling limit.

Can you please confirm if you are on the default throttling limit? If so, you can submit a request to increase the throttling limit as mentioned in the documentation here https://learn.microsoft.com/en-us/azure/communication-services/concepts/service-limits#email then you will be able to use the aforementioned features.

As mentioned in the documentation here Enable User Engagement Tracking, to enable this feature, your resource should not be on the default sending limits. Can you please confirm if you got your email throttling limit increased?

For more information about the email throttling limit and how to increase it, you can check the documentation Email throttling limit
Harshitha Veeramalla 891 Reputation points Microsoft External Staff

2025-04-30T05:43:51.0533333+00:00

Hi Devs, just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.

Answer 1

Hi,

In order to add more Mail From addresses you need to submit support request to increase your default sending limits. Below instructions are for case where you have Basic or Developer level Azure support plan. If you have Standard or higher level support, please let me know and I will post alternate instructions.

Please carefully follow instructions below to create a new Service and subscription limits (quotas) request to increase quota for Azure Communication Services.

1. Navigate to this link to start the process:

https://portal.azure.com/#view/Microsoft_Azure_Support/HelpAndSupportBlade/~/overview

2. Click Create a support request button at top

User's image

3. If you see Support AI Assistant as shown below, click Switch to old experience button on right. If not, proceed to step #4

User's image

4. Enter quota in the box and click Go

User's image

5. Select Others / Service and subscription limits (quotas) and click Next

User's image

6. Click Create a support request button, as shown

User's image

7. Select Issue type: Service and subscription limits (quotas), Subscription: <subscription that needs quota increase>, Quota type: Other Requests, click Next

User's image

8. Open Notepad (or other text editor). Navigate to Email quota increase article, click Copy button in upper right to copy text, and Paste it into Notepad. Add your company info to the file and answer all questions, then save to a .txt file on your computer.

9. On Additional details tab. Enter description for your request, click folder icon next to File upload box, and select .txt file you created in step#8.

User's image

10. Finish filling out Additional details tab, click Next, review and click Create. You should receive an automated email within a few minutes.

Please click Accept Answer and upvote if the above was helpful.

Thanks.

-TP

TP 118.5K Reputation points

2025-04-24T19:50:31.4066667+00:00

@Devs Any update?
TP 118.5K Reputation points

2025-04-28T19:49:23.9566667+00:00

@Devs Any update? Were you able to create support request?

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Unable to Add Mail From Address in Azure Communication Services (+Add Button Disabled)

1 answer

Your answer