Microsoft 365 Messaging Exam (MS-203) - Microsoft Actual Exam Questions
Last updated on May 07, 2026
You have a hybrid deployment between a Microsoft Exchange Online tenant and an on-premises Exchange Server 2019 server. Users report that the email they send to external recipients is marked as spam. You need to validate the Reverse DNS and Sender ID data for the on-premises server. What should you use in the Microsoft Remote Connectivity Analyzer?
Inbound SMTP Email
Outbound SMTP Email
Message Analyzer
Exchange Online Custom Domains DNS Connectivity Test
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You have a Microsoft 365 E5 subscription. A user attempts to send an email message to an external recipient and receives the following error message: “Your message couldn’t be delivered because you weren’t recognized as a valid sender. The most common reason for this is that your email address is suspected of sending spam and it’s no longer allowed to send messages outside of your organization. Contact your mail admin for assistance. Remote Server returned ‘550 5.1.8 Access denied, bad outbound sender’.” You need to ensure that the user send email to external recipients. What should you do?
compliance management in the Exchange admin center
Data loss prevention in the Security & Compliance admin center
Threat management in the Security & Compliance admin center
action center in the Exchange admin center
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HOTSPOT You have a Microsoft Exchange Online tenant. From a computer named Client1, you run the Microsoft Remote Connectivity Analyzer, perform a network test, and receive the results shown in the following exhibit.
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HOTSPOT 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.
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You have a Microsoft Exchange Online tenant named contoso.com. You create a partnership with two other companies named fabhkam.com and wingtiptoys.com. All the mailboxes of fabnkam.com are hosted in Microsoft 365. All the mailboxes of wingtiptoys.com are hosted in an on-premises Exchange Server 2019 organization. You need to ensure that all the email messages sent from contoso.com to fabrikam.com and wingtiptoys.com is encrypted by using TLS. What should you do?
Configure one connector.
Create an organizational relationship.
Create two remote domains.
Run the Office 365 Exchange Hybrid Configuration wizard.
Configure two mail flow rules.
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