Outlook Mailbox Authorization Instructions

Version Description

Currently only supports the international version of Outlook mailbox, not the Chinese mainland version, which is Microsoft operated by 21Vianet.

How to confirm that SMTP permissions are enabled

● How to confirm that the company has enabled SMTP permissions

See https://learn.microsoft.com/en-us/entra/fundamentals/security-defaults

Figure 1:The company turns on SMTP

● How to confirm that SMTP permissions are enabled for a single mailbox

See https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission

Figure 2:Enable SMTP for a single mailbox

● Administrator authorization scenario

In this scenario, the enterprise has controlled SMTP permissions. Only administrators with corresponding permissions can install on behalf of the enterprise. Therefore, you need to contact the administrator with this permission and check "Agree on behalf of the organization" during installation.

Figure 3：Administrator authorization required