Can Microsoft Graph API mail read operations affect the Exchange server performance?

Roberto Arias - CYGNUS 5

We are using Microsoft Graph API to capture some e-mail data, but we do not want to affect the Mail server (Exchange). Can several Graph API read calls affect the Exchange Server performance?

Yuki Sun-MSFT 41,041 Reputation points Microsoft Vendor

2023-07-28T01:31:35.39+00:00

Hi @Roberto Arias - CYGNUS ，

Welcome to Q&A!

The Exchange server Management tag is for general questions related to Exchange server, since from the description your question seems to be more related to development, I'll add the tag "Exchange Server Development" so that community users there can also see it.

1 answer

msft-gu 1,355 Reputation points

2023-07-27T23:35:29.8666667+00:00

Hi @Roberto Arias - CYGNUS

Good afternoon and thank you for your question. According to this article, use of Rest APIs have been deprecated. https://video2.skills-academy.com/en-us/graph/hybrid-rest-support

And also from this blog post of Exchange Team, it states that:

What API(s) should I use to work with Hybrid Orgs, where some mailboxes are in Exchange Online, and some are on Exchange Server?

You should continue to use Graph to work with Exchange Online mailboxes, and use Exchange Web Services (EWS) to work with Exchange Server (on-premises) mailboxes.

If you're using Exchange Server (on-premises), you should use EWS.

I hope I was able to answer your question. If it is, please upvote and accept it as an answer.

Thank you have and have a great day!
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Roberto Arias - CYGNUS 5 Reputation points

2023-07-28T00:35:30.5833333+00:00

HI @msdt-gu,

Thank you for you reply. Actually we are using Microsoft Graph API, I understand It is not deprecated, yet. I'm not connecting directly to exchange but using the graph API to access the data.

See more details below.

https://video2.skills-academy.com/en-us/graph/overview

msft-gu 1,355 Reputation points

2023-07-29T00:15:38.7066667+00:00

Hi @Roberto Arias - CYGNUS

Thank you for the response. My apologies for the misunderstanding. Can I please verify if you are pertaining to Exchange Server or Exchange Online?

msft-gu 1,355 Reputation points

2023-08-02T22:58:00.9866667+00:00

Hi Roberto,

Can I please know if you still need assistance on this?

Roberto Arias - CYGNUS 5 Reputation points

2023-08-04T16:37:21.4866667+00:00

Dear msft-gu,

Sorry for the late reply. We find out a solution using the Azure Graph API documentation. the API has a limit of 10000 API requests per 10 minutes and we are using a reduced number.

Thank you for your help.

msft-gu 1,355 Reputation points

2023-08-10T23:43:13.1366667+00:00

You're welcome and thank you for sharing your findings with us and the community. 👍
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Can Microsoft Graph API mail read operations affect the Exchange server performance?

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