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Microsoft MS-203 Exam With Confidence Using Practice Dumps

Exam Code:
MS-203
Exam Name:
Microsoft 365 Messaging
Vendor:
Questions:
394
Last Updated:
Jul 17, 2026
Exam Status:
Stable
Microsoft MS-203

MS-203: Microsoft 365 Certified: Messaging Administrator Associate Exam 2025 Study Guide Pdf and Test Engine

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Microsoft 365 Messaging Questions and Answers

Question 1

You recently implemented a hybrid deployment that contains a Microsoft Exchange Online tenant and an on-premises Exchange Server 2019 server named Server1. The public IP address of Server1 is 131.107.1.100.

The deployment is configured as shown in the following table.

Users hosted in Microsoft 365 report that they receive non-delivery reports (NDRs) when they attempt to send email messages to mailboxes hosted in Exchange Server 2019.

You need to ensure that the email is delivered successfully. The solution must ensure that email delivery is successful for all the users at your company.

What should you do?

Options:

A.

Configure the remote domain to use a value of contoso.com.

B.

Modify the MX record to point to the internal Exchange servers.

C.

Configure the Outbound connector to use a smart host of 131.107.1.100.

D.

Configure the accepted domain to use a value of *.

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Question 2

User3 leaves the company.

You need to ensure that Admin1 and Admin2 can access the mailbox of User3. The solution must meet the technical requirements.

What should you do?

Options:

A.

Migrate the mailbox of User3 to a distribution group.

B.

Migrate the mailbox of User3 to a Microsoft 365 group.

C.

Convert the mailbox of User3 into a resource mailbox.

D.

Convert the mailbox of User3 into a shared mailbox.

Question 3

Your company named Contoso, Ltd. has a Microsoft Exchange Server 2019 organization that contains the mailbox databases shown in the following table.

You need to assign an offline address book (OAB) named Managers to all the users in a group named Managers.

How should you complete the PowerShell script? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

Options: