Microsoft 365 Messaging — Question 39

You have a Microsoft Exchange Online tenant that uses a third-party email gateway device.
You discover that inbound email messages are delayed.
The gateway device receives the following error message when sending email to the tenant.
4.7.500 Server busy, please try again later.
You need to prevent inbound email delays.
What should you configure?

Answer options

• A. Organization Sharing
• B. an MX record for the domain
• C. a transport rule
• D. a connector

Correct answer: D

Explanation

Configuring a connector is essential to establish a reliable link between the third-party email gateway and the Exchange Online service, which can help mitigate delays. The other options do not directly address the routing and delivery of emails; for instance, an MX record is for directing email to the correct mail servers, not for controlling traffic flow or delivery issues.