使用 C# 从 Office 365 邮箱读取电子邮件

Question

It seems that Office 365 emails are no longer to be possible to be read using normal SMTP.

There seems to be a new procedure which also requires using Azure.

I need to be able to read and also delete old emails from a mailbox. Anyone knows of a blog somewhere which explains this clearly, as some blogs I saw were a bit vague?

Answer 1

You can use Microsoft Graph which lets your app get authorized access to a user's Outlook mail data in a personal or organization account. With the appropriate delegated or application mail permissions, your app can access the mail data of the signed-in user or any user in a tenant.

The Microsoft Graph API supports accessing data in users' primary mailboxes and in shared mailboxes. The data can be calendar, mail, or personal contacts stored in a mailbox in the cloud on Exchange Online as part of Microsoft 365, or on Exchange on-premises in a hybrid deployment. Read more about that in the Use the Outlook mail REST API article.