How to use outlook account mailbox to send mail by my application?

Question

I have a requirement,

which is to use an Outlook account email to send emails.

These types of email are mostly Outlook and Hotmail accounts,

They are all free email accounts and use OAuth2 authentication.

My application needs to use this type of email as a sender to send emails.

How should I proceed? What licenses are needed?

Answer 1

Hi @Developer GZ

First, you'll need to register an app in your tenant that allows personal accounts to log in.

Next, use the authorization code flow to authenticate your personal account and generate an access token. Note that when logging in to a user and requesting a token, you need to change /{tenant_id} to /common.

Finally, call the POST /me/sendMail API to send the email.

By the way, since your users are personal or social accounts, they don't need any licenses.

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Hope this helps.

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Answer 2

Hi：

CarlZhao-MSFT,Thank for your response.

I am very glad to receive your reply. Your answer is very helpful to me.

I would like to know what Microsoft Graph API permissions need to be granted to my application.

For example, my manager account is ******@gzabc.onmicrosoft.com.

Currently, my only user is administrators ******@gzabc.onmicrosoft.com

Now, I want to send an email to ******@outlook.com as ******@outlook.com.

We need to ******@outlook.com Join my organization as a user?

Who obtained the access_token as ?

it is ******@outlook.com or

******@gzabc.onmicrosoft.com ?

Looking forward to your response