How to add custom email address on Email Communication Services.

Question

How to add custom email address on Email Communication Services.

Kapil Soni 0

I have added my custom domain in Email Communication Services. It has already verified now, but I am unable to add a custom sender mail, the add button is currently disabled there, how I can enable this.

Shree Hima Bindu Maganti 3,600 Reputation points Microsoft External Staff

2025-03-12T11:24:18.7166667+00:00

Hi @Kapil Soni ,
The issue where the 'Add' button for adding a custom sender email address (MailFrom address) in Azure Email Communication Services stays disabled, even after verifying their custom domain. This usually happens because of Azure's default throttling limits to prevent misuse, spam, or abuse. To fix this, users need to submit a support request to Microsoft to increase these limits. The Azure team will look at factors like domain reputation, email delivery success rate, and any history of spam or abuse before giving approval. Sometimes, incomplete domain verification or insufficient permissions on the Azure resource can also cause this issue. Make sure all DNS records are correctly set up and propagated, and that the user has 'Owner' or 'Contributor' role assigned. If these steps don't work, users can manually add a sender email via Azure CLI using the command az communication email domain sender-username create. For detailed steps, Microsoft Docs. Following these steps should enable the 'Add' button and let you configure custom sender emails in Azure Email Communication Services.
You can refer the article also:
https://learn.microsoft.com/en-us/answers/questions/2153851/unable-to-add-multiple-mailfrom-addresses-on-azure
Please let us know if you need further assistance.
Kapil Soni 0 Reputation points

2025-03-12T12:16:15.1266667+00:00

@Shree Hima Bindu Maganti

How i can submit a support request to Microsoft to increase these limits..?
Kapil Soni 0 Reputation points

2025-03-12T12:18:00.1066667+00:00

@Shree Hima Bindu Maganti

Please give me complete step-by-step flow to make request for increase these limits

1 answer

Your answer

Shree Hima Bindu Maganti 3,600 Reputation points Microsoft External Staff

2025-03-12T11:24:18.7166667+00:00

Hi @Kapil Soni ,
The issue where the 'Add' button for adding a custom sender email address (MailFrom address) in Azure Email Communication Services stays disabled, even after verifying their custom domain. This usually happens because of Azure's default throttling limits to prevent misuse, spam, or abuse. To fix this, users need to submit a support request to Microsoft to increase these limits. The Azure team will look at factors like domain reputation, email delivery success rate, and any history of spam or abuse before giving approval. Sometimes, incomplete domain verification or insufficient permissions on the Azure resource can also cause this issue. Make sure all DNS records are correctly set up and propagated, and that the user has 'Owner' or 'Contributor' role assigned. If these steps don't work, users can manually add a sender email via Azure CLI using the command az communication email domain sender-username create. For detailed steps, Microsoft Docs. Following these steps should enable the 'Add' button and let you configure custom sender emails in Azure Email Communication Services.
You can refer the article also:
https://learn.microsoft.com/en-us/answers/questions/2153851/unable-to-add-multiple-mailfrom-addresses-on-azure
Please let us know if you need further assistance.
Kapil Soni 0 Reputation points

2025-03-12T12:16:15.1266667+00:00

@Shree Hima Bindu Maganti

How i can submit a support request to Microsoft to increase these limits..?
Kapil Soni 0 Reputation points

2025-03-12T12:18:00.1066667+00:00

@Shree Hima Bindu Maganti

Please give me complete step-by-step flow to make request for increase these limits

Answer 1

Hi @Kapil Soni ,
Thanks for your Update.
The article "Service limits for Azure Communication Services" explains the default limits for Azure Communication Services (ACS) features like identity management, SMS, and email. For the Email Communication Service, although the platform supports high throughput, initial rate limits are in place to ensure a smooth start and avoid issues when switching to a new email service. These limits help maintain quality and protect sender reputations. If your organization needs to send more emails, you can request an increase by contacting Azure Support.

Sign in to the Azure Portal:
Head to https://portal.azure.com/ and log in with your Azure credentials.
Access Help + Support:
Click the "?" (Help) icon at the top-right of the portal.
Select "Help + support" from the dropdown menu.
On the Help + support page, click "Create a support request".
Define the Issue,
Under "Problem description", set the following:
Issue type: Choose "Service and subscription limits (quotas)".
Subscription: Select the subscription linked to your Email Communication Service.
Quota type: Pick "Other Requests".
Provide Additional Details,
In the "Details" section,
Title: Use a title like "Request to Increase Email Sending Limits for Azure Communication Services".
Description: Explain your request, including:
Current limits and desired increase.
Reason for the increase, like business needs or expected email volume.
Any metrics or usage patterns supporting your request.
Review and Submit:
Check your support request details.
Click "Create" to submit it.

After submitting, keep an eye on your email and the Azure Portal for updates from the support team. It's a good idea to gradually increase your email volume over two to four weeks while monitoring delivery status. This helps third-party email providers adjust to the change in IP for your domain’s email traffic, protecting your sender reputation and ensuring reliable delivery.
If the answer is helpful, please click Accept Answer and kindly upvote it so that other people who faces similar issue may get benefitted from it.
Please let us know if you need further assistance.

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