Troubleshooting Microsoft Exchange Online — Question 31

A company uses Exchange Online.
The company configures an SMTP relay device. Users report they are unable to send email through the relay device.
You need to ensure that the relay device can send email by using SMTP AUTH.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

Answer options

• A. Configure the network firewall to allow traffic on port 443.
• B. Instruct users to specify a different email address when sending email.
• C. Configure the network firewall to allow traffic on port 587.
• D. Configure a licensed Microsoft 365 mailbox on the relay device.

Correct answer: C, D

Explanation

The correct actions are to configure the firewall for port 587 and to set up a licensed Microsoft 365 mailbox on the relay device. Port 587 is used for SMTP AUTH, while having a licensed mailbox is necessary for authentication. The other options do not address the requirements for SMTP AUTH or are irrelevant to the relay device's configuration.