Query Regarding Limitations on Azure Communication Services - Email and SMS

JanakKhadka 566

Hi,

I've been exploring the capabilities of Azure Communication Services, specifically focusing on the Email functionalities. It's clear that these services cater to transactional and bulk communication needs, operating under a convenient pay-as-you-go model.

My understanding is that these services are positioned as solutions for scenarios where Microsoft 365 Services might not fully meet the requirements. However, I've come across limitations, especially with regards to Email, and I'm curious about the rationale behind them. I've attached the screenshot from Microsoft Official documents for reference here.

Given that these services are designed to handle bulk communication and are billed based on usage, could you shed some light on the reasoning behind having certain limits? For instance, in the case of Email, where it's a pay-as-you-go service, it seems counterintuitive to have limitations in place.

I'm looking for insights into why these restrictions exist and how they align with the overall philosophy of Azure Communication Services. Similarly, if there are considerations for SMS, I would appreciate some clarity on that front as well.

Thank you for your time, and I'm eager to gain a deeper understanding of these aspects to better utilize the capabilities of Azure Communication Services.

Best regards,

Janak Khadka

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Raviraj Nallasivam 170 Reputation points

2023-12-28T21:36:18.4633333+00:00
Thanks for your question!

In azure, quota or limit concept is applied to all services(including Azure communication services) scoped to subscription.

The concept of quotas is designed to help protect customers from things like inaccurately resourced deployments and mistaken consumption. For Azure, it helps minimize risks from deceptive or inappropriate consumption and unexpected demand. Quotas are set and enforced in the scope of the subscription.

For more details, please refer

https://learn.microsoft.com/en-us/azure/quotas/quotas-overview

https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/azure-subscription-service-limits
JanakKhadka 566 Reputation points

2023-12-29T04:17:45.3533333+00:00

Hi @Raviraj Nallasivam ,

I appreciate the detailed explanation regarding Azure quotas and their application across services. However, I have concerns specifically about the limitations imposed on Azure Communication Services, particularly with regards to the Email service.

Upon reviewing the provided documentation, it appears that the email quotas for Azure Communication Services are significantly lower than those offered by Microsoft 365 Exchange Online Services. For example, the "No. of Emails per Day" for Azure Communication Services is mentioned as 2400, while Exchange Online supports up to 10,000 emails per day per mailbox.

This significant discrepancy raises questions about the practicality of using Azure Communication Services for transactional emails, especially in scenarios where high volumes are anticipated. While it's mentioned that limits can be increased on a requirement basis after submitting a support request, the initial limitations seem quite restrictive, potentially posing challenges on the first day of deployment when the demand might be high.

Furthermore, there's a concern about what happens to emails when the limit is exceeded. If emails are not queued, what is the fallback mechanism for ensuring that critical communication is not lost? This becomes a critical point for consideration in a production environment where reliability is paramount.

I would appreciate it if you could provide further clarification on the rationale behind these specific limits for Azure Communication Services Email and how organizations can effectively manage and scale their email communication within these constraints.

Thank you.
JanakKhadka 566 Reputation points

2023-12-29T04:19:09.24+00:00

Hi there,

I appreciate the detailed explanation regarding Azure quotas and their application across services. However, I have concerns specifically about the limitations imposed on Azure Communication Services, particularly with regards to the Email service.

Upon reviewing the provided documentation, it appears that the email quotas for Azure Communication Services are significantly lower than those offered by Microsoft 365 Exchange Online Services. For example, the "No. of Emails per Day" for Azure Communication Services is mentioned as 2400, while Exchange Online supports up to 10,000 emails per day per mailbox.

This significant discrepancy raises questions about the practicality of using Azure Communication Services for transactional emails, especially in scenarios where high volumes are anticipated. While it's mentioned that limits can be increased on a requirement basis after submitting a support request, the initial limitations seem quite restrictive, potentially posing challenges on the first day of deployment when the demand might be high.

Furthermore, there's a concern about what happens to emails when the limit is exceeded. If emails are not queued, what is the fallback mechanism for ensuring that critical communication is not lost? This becomes a critical point for consideration in a production environment where reliability is paramount.

I would appreciate it if you could provide further clarification on the rationale behind these specific limits for Azure Communication Services Email and how organizations can effectively manage and scale their email communication within these constraints.

Thank you.
SnehaAgrawal-MSFT 21,661 Reputation points

2024-01-02T05:46:54.9533333+00:00

@JanakKhadka Thanks for clarifications, Could you please reach out to us by sending an email with subject line “Attn:Sneha |thread title” to AzCommunity[at]microsoft[dot]com referencing this thread, for quick resolution.
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JanakKhadka 566 Reputation points

2024-01-03T04:39:45.3833333+00:00

@SnehaAgrawal-MSFT Hi Sneha, as per your suggestion, I've emailed on the provided email address, but still, I'm not getting any responses. Please take this case with urgency,
SnehaAgrawal-MSFT 21,661 Reputation points

2024-01-04T11:28:40.3133333+00:00

@JanakKhadka I have reached to poc internally, would respond you soon.

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SnehaAgrawal-MSFT 21,661 Reputation points

2024-01-19T06:34:08.0233333+00:00

@JanakKhadka Update- To increase the desired limit, you should configure the service and submit a support ticket. You will receive a confirmation once your limit is raised. Its mentioned here- Service limits for Azure Communication Services - An Azure Communication Services how-to document | Microsoft Learn

Please let us know if further query or issue remains.

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