Free MS-203: Microsoft 365 Messaging Exam Questions and Answers
Microsoft 365 Messaging is exam MS-203, part of Microsoft Certifications. Microsoft exam codes name the solution area rather than the level — AZ for Azure, DP for data, MS for Microsoft 365, PL for Power Platform, SC for security, AI for Azure AI — with one reliable rule: any exam numbered 900 or 901 is Fundamentals. Every technical exam is scored from 1 to 1000 with 700 to pass, a scaled score Microsoft notes is explicitly not 70% of the marks.
Candidates comparing MS-203 exam dumps, ExamTopics and other MS-203 practice tests use this page for the answers and explanations behind each question. Download the free MS-203 PDF, then sit the timed MS-203 exam simulation before booking with Microsoft.
Last updated: October 4, 2026
- Exam code
- MS-203
- Provider
- Microsoft
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
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Question #1
Your company has a Microsoft Exchange Server 2019 hybrid deployment. Users in the advertising department and the editorial department of the company have mailboxes in Exchange Online. A company policy requires that the advertising department users and the editorial department users be segmented based on the following requirements: • The advertising department users must not see the editorial department users in the global address list (GAL). • The editorial department users must not see the advertising department users in the GAL. • The editorial department users must be treated as external recipients of the advertising department users. • The advertising department users must be treated as external recipients of the editorial department users. You need to recommend a solution that meets the requirements and minimize costs and effort. What should you recommend?
Correct answer: D
Explanation
References: https://docs.microsoft.com/en-us/exchange/email-addresses-and-address-books/address- book-policies/ address-book-policies?view=exchserver-2019
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Question #2
You have a Microsoft 365 tenant that contains a user named User1. User1 reports that she cannot configure a mail profile in Microsoft Outlook for Windows. User1 receives the following error message: "Encrypted connection to your mail server is not available." You verify that User1 is assigned a Microsoft Office 365 Enterprise F3 license and can send email messages from her account by using Outlook on the web. You need to ensure that User1 can connect to Outlook successfully. What should you do?
Correct answer: C
Explanation
Reference: https://docs.microsoft.com/en-us/exchange/troubleshoot/outlook-issues/encrypted- connection-unavailable
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Question #3
You have a Microsoft Exchange Online tenant that uses an email domain named @contoso.com. You recently configured Microsoft 365 to use a new email domain named @fabrikam.com instead of @contoso.com Users report that when they send email messages to external recipients, the messages are often erroneously identified as SPAM. You verify that all the users can receive email successfully from other companies. You need to reduce the likelihood that the email will be identified as SPAM by the external recipients. What should you modify?
Correct answer: A
Explanation
External recipients mark the mail as spam because the new fabrikam.com domain lacks a valid SPF TXT record authorising Microsoft 365 to send on its behalf. MX and mail flow rules affect inbound delivery, not outbound spam scoring.
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Question #4
You have a Microsoft 365 subscription that uses a default domain named contoso.com. Users report that email messages from a domain named fabrikam.com are identified as spam even though the messages are legitimate. You need to prevent messages from fabrikam.com from being identified as spam. What should you do?
Correct answer: D
Explanation
Reference: https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/configure-the-connection-filter-policy?view=o365-worldwide
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Question #5
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. You have a Microsoft Exchange Online tenant that contains 1,000 users. A user named User1 receives a non-delivery report (NDR) when attempting to send an email message to an internal group named sales@contoso.com. The NDR contains the following text: “5.7.1 Delivery not authorized.” You need to ensure that User1 can send email to sales@contoso.com successfully. Solution: You modify the properties of the sales@contoso.com group.
Correct answer: A
Explanation
The 5.7.1 Delivery not authorized NDR occurs when the group only accepts messages from authorized senders. Modifying the group's delivery management settings to allow User1 (or all senders) fixes the problem, so the goal is met.
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Question #6
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. Your company has a Microsoft 365 subscription. Several users in the finance department of the company recently accessed unsafe websites by clicking on links in email messages. Users in the marketing department of the company report that they must be able to access all the links embedded in email messages. You need to reduce the likelihood of the finance department users accessing unsafe websites. The solution must affect only the finance department users. Solution: You modify the Global Settings Safe Links policy. Does this meet the goal?
Correct answer: B
Explanation
Reference: https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/configure-global-settings-for-safe-links?view=o365-worldwide
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Question #7
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. Your company has a Microsoft Exchange Server 2019 hybrid deployment that contains two Mailbox servers named MBX1 and MBX2. The company has the departments shown in the following table. From the on-premises organization, outbound email is sent directly to the Internet by using DNS lookups. You are informed that some sales department users send email messages that are identified as spam. You need to automatically block the sales department users from repeatedly sending spam. Solution: You migrate all the mailboxes of the sales department to Exchange Online. Does this meet the goal?

Correct answer: B
Explanation
Exchange Online Protection (EOP) will scan outbound messages from Exchange Online mailboxes.
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Question #8
You have a Microsoft Exchange Online tenant that uses Microsoft Defender for Office 365. You need to create a new Safe Attachments policy named Policy1 that meets the following requirements: • Immediately delivers email messages that contain attachments and replaces the attachments with placeholders • Reattaches the attachments after scanning is complete • Quarantines malicious attachments Which action should you select for Policy1?
Correct answer: C
Explanation
Dynamic Delivery delivers the message immediately with a placeholder attachment, reattaches the file once scanning finishes, and quarantines attachments found to be malicious. Block and Replace hold or strip the message instead.
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Question #9
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. You have a Microsoft Exchange Server 2019 hybrid deployment. All user mailboxes are hosted in Microsoft 365. All outbound SMTP email is routed through the on- premises Exchange organization. A corporate security policy requires that you must prevent credit card numbers from being sent to internet recipients by using email. You need to configure the deployment to meet the security policy requirement. Solution: From Microsoft 365, you create a supervision policy. Does this meet the goal?
Correct answer: B
Explanation
You should create a Data Loss Prevention (DLP) policy.
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Question #10
You have a hybrid deployment between a Microsoft Exchange Online tenant and an Exchange Server 2019 organization. You need to enable journaling for outbound email. Where can you store the journal reports?
Correct answer: B
Explanation
In Exchange Online you cannot designate an Exchange Online mailbox (or SharePoint library) as the journaling mailbox. In a hybrid deployment journal reports are sent to an on-premises Exchange Server 2019 mailbox or a third-party archiving service.
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Discussion
Explain your reasoning, not just the letterOther Microsoft certifications
- AZ-500: Microsoft Azure Security Technologies (opens in a new tab)
- MS-101: Microsoft 365 Mobility and Security (opens in a new tab)
- MS-102: Microsoft 365 Administrator (beta) (opens in a new tab)
- MS-100: Microsoft 365 Identity and Services (opens in a new tab)
- PL-900: Microsoft Power Platform Fundamentals (opens in a new tab)
- AZ-305: Designing Microsoft Azure Infrastructure Solutions (opens in a new tab)
- MS-900: Microsoft 365 Fundamentals (opens in a new tab)
- AZ-400: Microsoft Azure DevOps Solutions (opens in a new tab)
- AZ-900: Microsoft Azure Fundamentals (opens in a new tab)
- 70-740: Installation, Storage, and Compute with Windows Server 2016 (opens in a new tab)
- MD-102: Endpoint Administrator (beta) (opens in a new tab)
- PL-300: Microsoft Power BI Data Analyst (opens in a new tab)
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FAQ
Learn More: https://learn.microsoft.com/en-us/credentials/
- Q1: Is the MS-203 exam retired?
- A: Yes. Microsoft retired Exam MS-203: Microsoft 365 Messaging on December 31, 2023. It was the sole exam for the Microsoft 365 Certified: Messaging Administrator Associate certification, and Microsoft's exam page lists no related or replacement exam.
- Q2: What did the MS-203 exam cover and how were the domains weighted?
- A: When it was live, the exam measured three skill areas: manage Microsoft Exchange Online settings and resources (40-45%), plan and manage the mail transport architecture (25-30%), and secure the messaging environment (25-30%).
- Q3: What was the passing score for MS-203?
- A: Like all Microsoft technical exams, MS-203 was scored on a scale of 1 to 1,000 and a score of 700 or greater was a pass. Because the score is scaled it did not equal 70% of the questions.
- Q4: In which languages was the MS-203 exam offered?
- A: The exam was available in English, Japanese, Chinese (Simplified), Korean, German, French, Spanish, Portuguese (Brazil), Chinese (Traditional) and Italian.
- Q5: Who was the MS-203 exam designed for?
- A: Microsoft aimed it at Microsoft 365 messaging administrators who plan, configure and manage recipients, mail flow, threat protection, compliance and client connectivity in Exchange Online, with working knowledge of Exchange Management Shell, Microsoft Purview and Microsoft Entra ID.
- Q6: What was the retake policy for MS-203?
- A: Microsoft's retake policy for role-based exams applied: a 24-hour wait after a first failed attempt, a 14-day wait between later attempts, and a maximum of five attempts in a 12-month period.
- Q7: How much did the MS-203 exam cost?
- A: Microsoft priced the exam according to the country or region where it was proctored, so the fee varied by location rather than being a single global price.
- Q8: What is the MS-203: Microsoft 365 Messaging exam?
- A: MS-203: Microsoft 365 Messaging is a Microsoft certification exam. Judging by the questions in our bank, it concentrates on exchange, microsoft, tenant, user1 and mailboxes.
- Q9: What topics does the MS-203: Microsoft 365 Messaging exam cover?
- A: Questions in our MS-203: Microsoft 365 Messaging bank cluster around exchange, microsoft, tenant, user1, mailboxes, named, online and contoso.com. Working through the full set is the quickest way to find which of these you are weakest on.
- Q10: How should I prepare for MS-203: Microsoft 365 Messaging?
- A: Work through the MS-203: Microsoft 365 Messaging practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q11: Are these real MS-203: Microsoft 365 Messaging exam questions?
- A: They are drawn from officially released past questions and from community members who have sat MS-203: Microsoft 365 Messaging. Answers are verified and updated weekly.
- Q12: Where do I register for the MS-203: Microsoft 365 Messaging exam?
- A: Register through Microsoft directly at https://learn.microsoft.com/en-us/credentials/. Exampractice is not affiliated with Microsoft and does not administer the exam.
- Q13: Is there a free MS-203: Microsoft 365 Messaging sample?
- A: Yes. Every MS-203: Microsoft 365 Messaging page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q14: What are Microsoft Certification Exams?
- A: Microsoft Certification Exams validate your expertise in using and managing Microsoft’s technologies and solutions, including Azure, Office 365, Windows, and more. These certifications demonstrate your proficiency in deploying, configuring, and optimizing Microsoft products to support business operations and IT infrastructure.
- Q15: Why should I pursue Microsoft Certification?
- A: Microsoft Certification enhances your professional credibility, showcasing your skills and knowledge in Microsoft technologies. This can lead to better job opportunities, higher salaries, and career advancement in IT, cloud computing, software development, and related fields.
- Q16: What are the benefits of Microsoft Certification?
- A: Benefits include recognition as a certified Microsoft professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest Microsoft technologies and best practices.
- Q17: Who should take Microsoft Certification Exams?
- A: IT professionals, system administrators, developers, cloud engineers, data analysts, and anyone involved in managing and implementing Microsoft solutions should consider these certifications to validate their expertise and advance their careers.
- Q18: What types of Microsoft Certification Exams are available?
- A: Microsoft offers various certification paths, including:
- Q19: How do I prepare for Microsoft Certification Exams?
- A: Preparation can include official Microsoft training courses, study guides, practice exams, online tutorials, and hands-on experience with Microsoft products and solutions.
- Q20: Where can I take Microsoft Certification Exams?
- A: Microsoft Certification Exams can be taken online with remote proctoring or at authorized Pearson VUE testing centers worldwide, providing flexibility to fit your schedule and location.
- Q21: How do Microsoft Certifications impact my career?
- A: Microsoft Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in IT, cloud computing, software development, and other tech-related fields.
- Q22: Are there any prerequisites for Microsoft Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior experience with Microsoft products. Check the specific requirements for each certification path on the Microsoft Learn website.
- Q23: How often do I need to recertify for Microsoft Certifications?
- A: Microsoft Certifications typically require renewal every year or two, depending on the certification, to ensure that certified professionals stay updated with the latest technologies and industry practices.



