Microsoft MS-203 dumps

Microsoft MS-203 Exam Dumps

Microsoft 365 Messaging
738 Reviews

Exam Code MS-203
Exam Name Microsoft 365 Messaging
Questions 394 Questions Answers With Explanation
Update Date 04, 26, 2026
Price Was : $90 Today : $50 Was : $108 Today : $60 Was : $126 Today : $70

Why Should You Prepare For Your Microsoft 365 Messaging With MyCertsHub?

At MyCertsHub, we go beyond standard study material. Our platform provides authentic Microsoft MS-203 Exam Dumps, detailed exam guides, and reliable practice exams that mirror the actual Microsoft 365 Messaging test. Whether you’re targeting Microsoft certifications or expanding your professional portfolio, MyCertsHub gives you the tools to succeed on your first attempt.

Verified MS-203 Exam Dumps

Every set of exam dumps is carefully reviewed by certified experts to ensure accuracy. For the MS-203 Microsoft 365 Messaging , you’ll receive updated practice questions designed to reflect real-world exam conditions. This approach saves time, builds confidence, and focuses your preparation on the most important exam areas.

Realistic Test Prep For The MS-203

You can instantly access downloadable PDFs of MS-203 practice exams with MyCertsHub. These include authentic practice questions paired with explanations, making our exam guide a complete preparation tool. By testing yourself before exam day, you’ll walk into the Microsoft Exam with confidence.

Smart Learning With Exam Guides

Our structured MS-203 exam guide focuses on the Microsoft 365 Messaging's core topics and question patterns. You will be able to concentrate on what really matters for passing the test rather than wasting time on irrelevant content. Pass the MS-203 Exam – Guaranteed

We Offer A 100% Money-Back Guarantee On Our Products.

After using MyCertsHub's exam dumps to prepare for the Microsoft 365 Messaging exam, we will issue a full refund. That’s how confident we are in the effectiveness of our study resources.

Try Before You Buy – Free Demo

Still undecided? See for yourself how MyCertsHub has helped thousands of candidates achieve success by downloading a free demo of the MS-203 exam dumps.

MyCertsHub – Your Trusted Partner For Microsoft Exams

Whether you’re preparing for Microsoft 365 Messaging or any other professional credential, MyCertsHub provides everything you need: exam dumps, practice exams, practice questions, and exam guides. Passing your MS-203 exam has never been easier thanks to our tried-and-true resources.

Microsoft MS-203 Sample Question Answers

Question # 1

You have a hybrid deployment that contains a Microsoft Exchange Online tenant and an on-premises Exchange Server 2019 server named Server1. All users use an email address suffix of @contoso.com. You migrate 200 mailboxes from Server1 to Exchange Online by using Exchange PowerShell cmdlets. Users hosted on Server1 can send email messages to the migrated mailboxes. In Microsoft 365, you create a new mailbox that uses an email address of [email protected]. When email is sent from the mailboxes hosted on Server1 to [email protected], the senders receive a non-delivery report (NDR) that contains the following text: "550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup." You verify that Microsoft 365 mailboxes can send email to [email protected] successfully. You delete the user account and mailbox of User1. You need to ensure that when new mailboxes are created, all the users at your company can exchange email successfully Which two actions should you perform? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

A. From Azure AD Connect, modify the synchronization settings 
B. From Server1, run the New-RemoteMailbox cmdlet 
C. From Server1, run the Enable-Mailbox cmdlet 
D. From the on-premises network, create new mailboxes, and then migrate the mailboxes to Microsoft 365 
E. From the Exchange admin center, modify the properties of the Outbound connector 



Question # 2

You have a Microsoft Exchange Online tenant that has Office 365 Advanced Threat Protection (ATP) enabled. The tenant contains a user named Ben Smith who has a UPN of [email protected]. Ben Smith is protected by using an ATP anti-phishing policy. Ben Smith reports that emails sent from his personal account of [email protected] are not delivered to his work email account. You need to ensure that personal emails are delivered to the [email protected] What should you do? 

A. Create a transport rule to assign the MS-Exchange-Organization-PhishThresholdLevel header a value of 2 for the message received from [email protected]
 B. Add [email protected] as a trusted sender to the ATP anti-phishing policy. 
C. Add [email protected] as a trusted sender to the ATP anti phishing. 
D. Add relecloud.com to the ATP anti-phishing list of misted domains. 



Question # 3

You have a Microsoft Exchange Server 2019 organization. You add 100 new users and create a mailbox for each user. The new users have the City attribute in Active Directory set to Seattle. You need to create a separate global address list (GAL) that contains only users who have the City attribute set to Seattle. The solution must ensure that any new users who have the City attribute of Seattle are added automatically to the new GAL. What should you do? L. 

A. From the Azure Active Directory admin center, create an Office 365 group that uses a dynamic membership rule.
 B. From the Exchange admin center, create a new GA
C. Run the New-EmailAddressPolicy cmdlet to create a new email address policy that uses a recipient filter. 
D. Run the New-GlobalAddressList cmdlet to create a new address list. 



Question # 4

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 uses an email domain named contoso.com. You need to prevent all users from performing the following tasks: Sending out-of-office replies to an email domain named fabrikam.com. Sending automatic replies to an email domain named adatum.com. The solution must ensure that all the users can send out-of-office replies and automatic replies to other email domains on the internet. Solution: You create two new remote domains. Does this meet the goal?

A. Yes 
B. No 



Question # 5

Your company has a Microsoft Exchange Server 2019 organization that contains two servers in a database availability group (DAG). The customer service department at the company uses public folders to receive customer communications. Only users in the customer service department can read items in the folders. For a new customer, you create a mail-enabled public folder that has the default settings. The customer reports that when she sends an email message to the email address of the public folder, she receives a non-delivery report (NDR). You need to ensure that the public folder can receive email. Which public permissions should you configure in Microsoft Outlook?

A. Grant the Author permission to the Default group 
B. Grant the Author permission to the Anonymous group 
C. Grant the Create items permission to the Anonymous group 
D. Grant the Create items permission to the Default group 



Question # 6

You have a Microsoft Exchange Server 2019 organization that uses an Edge Server. You plan to implement a hybrid deployment between Exchange Online and Exchange Server. You need to ensure that all the email between Exchange Online and Exchange Server 2019 is sent by using the Edge Server. Which two hybrid configuration topologies could you deploy to meet the requirements? Each correct answer presents a complete solution. 

A. Modern Minimal 
B. Classic Minimal 
C. Classic Full 
D. Classic Express 
E. Modern Full 



Question # 7

Your on-premises network contains a proxy server and a firewall. The proxy server is configured to inspect the contents of HTTP and HTTPS sessions to identify disallowed content. Only the proxy server can connect to the internet through the firewall. You implement Microsoft Exchange Online. Users report that they receive an error message when they attempt to connect to their mailbox by using Microsoft Outlook. From the internal network, you connect to https://outlookoffice.com/mail and discover a certificate error. You discover that the certificate error contains information about a certificate issued by your company's internal certification authority (CA). You need to ensure that all the users can connect successfully to their mailbox. What should you do? 

A. Install a new root CA certificate on the client computer of each user. 
B. Configure client computers to bypass the proxy server when they access https://*.microsoft.com. 
C. Disable HTTPS content inspection on the proxy server. 
D. Install a new root CA certificate on the proxy server. 



Question # 8

You have a hybrid deployment that contains a Microsoft exchange Online tenant and anon premises Exchange Server 2019 server named Server1. Alt users use an email address suffix of @contoso.com. On Server1, you create a new mailbox that uses an email address of [email protected] Users hosted in Exchange Online report that they receive a non-delivery report (NDR) When they attempt to send email messages to [email protected]. The NDR contains the following text: "User1 wasn't found at contoso.com." You verify that the Exchange Online users can send email successfully to the other mailboxes hosted on Server1. Users hosted on Server1 can send email to [email protected] successfully. You need to identify what causes the email delivery to fail. What should you use? 

A. the Azure Active Directory admin center 
B. the Exchange admin center 
C. Azure AD Connect Health 
D. the on-premises Exchange admin center 



Question # 9

You have 1,000 user accounts that are each licensed for Microsoft 365. Each user account has a Microsoft Exchange Online mailbox. Ten of the user accounts are configured as service accounts for applications. The applications send event notifications to the mailboxes of the service accounts by using SMTP. The developers of each application have delegated access to the mailbox of their respective application. You need to ensure that all the event notifications sent by the applications are retained in the service account mailboxes so that new developers can review older notifications. The developers must be able to view only the notifications for their respective application. What should you do?

A. Replace the service account mailboxes with a single user mailbox that contains a folder for each application. 
B. Replace the service account mailboxes with a single user mailbox that contains Power Automate rules. 
C. Convert the service account mailboxes into shared mailboxes. 
D. Convert the service account mailboxes into mail-enabled users. 



Question # 10

You have a Microsoft 365 subscription. A safe attachments policy that uses Dynamic Delivery is applied to all recipients who match your SMTP domains. You need to prevent attachments form being scanned when internal users send email to one another. What should you do? 

A. From the Security & and Compliance admin center, modify the safe attachments policy. 
B. From the Security & and Compliance admin center, modify the Service assurance settings. 
C. From the Exchange admin center, create a transport rule. 
D. From the Exchange admin center, modify the malware filter. 



Question # 11

You have a Microsoft Exchange Online tenant. Remote users report that they receive an error message when they attempt to add their email account to Microsoft Outlook. You need to confirm that the DNS records resolve correctly for the users. Which two DNS records should you test? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point. 

A. autodiscover.outlook.com 
B. smtp.office365.com 
C. outlook.office365.com 
D. security.microsoft365.com 
E. portal.office.com 



Question # 12

Your company named Contoso, Ltd. has a Microsoft Exchange Online subscription. You have several transport rules. The rules automatically apply a disclaimer to email messages that contain certain keywords in the subject and are sent to recipients in an email domain named fabrikam.com. You receive a report that some messages are delivered without the disclaimer. You need to view which transport rules were applied to messages sent to the fabrikam.com recipients. What should you use? 

A. the SMTP protocol logs 
B. a URL trace 
C. the transport server logs 
D. a message trace 



Question # 13

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?

A. Yes 
B. No 



Question # 14

You have a Microsoft Exchange Online subscription. You need to prevent all Android devices from using Exchange ActiveSync to sync email. Other devices must be allowed to sync email by using Exchange ActiveSync. What should you use? 

A. data loss prevention (DLP) policies 
B. Exchange ActiveSync access settings 
C. device access rules 
D. mobile device mailbox policies 



Question # 15

Your company has a Microsoft Exchange Server 2019 hybrid deployment. The company has a finance department. You need to move all the on-premises mailboxes of the finance department to Exchange Online. The bulk of the move operation must occur during a weekend when the company’s Internet traffic is lowest. The move must then be finalized the following Monday. The solution must minimize disruption to end users. What should you do first?

A. Schedule a task that runs the New-MoveRequest cmdlet and specifies the Remote parameter. 
B. Run the New-MigrationBatch cmdlet and specify the MoveOptions parameter. 
C. Run the New-MigrationBatch cmdlet and specify the CompleteAfter parameter.
 D. Create a script that moves most of the mailboxes on Friday at 22:00 and the remaining mailboxes on Monday at 09:00. 



Question # 16

You manage an Exchange Online tenant. You plan to migrate on-premises Microsoft Exchange Server mailboxes by using a cutover migration. You need to grant the required permissions to the migration administrator account to complete the migration. The solution must use the principle of least privilege. Which three permissions should you grant? Each correct answer presents a complete solution NOTE: Each correct selection is worth one point. 

A. the FullAccess permission on each on-premises mailbox and the WriteProperty permission to modify the TargetAddress property of the on-premises user account 
B. the Receive As permission on the on-premises mailbox database that stores the user mailboxes and the WriteProperty permission to modify the TargetAddress property of the on-premises user account 
C. Domain Admins group member in Active Directory Domain Services (AD DS) of the onpremises Exchange organization 
D. the FullAccess permission on each on-premises mailbox
 E. the Receive As permission on the on-premises mailbox database that stores the user mailboxes 



Question # 17

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 [email protected]. The NDR contains the following text: “5.7.1 Delivery not authorized.” You need to ensure that User1 can send email to [email protected] successfully. Solution: You modify the properties of User1.

A. Yes 
B. No 



Question # 18

You have a Microsoft 365 environment that contains 1,000 mailboxes. You need to ensure that only an administrator named Admin1 can use the Exchange Management Shell to manage What should you do? 

A. Create a conditional access policy and apply the policy to all users. 
B. For all users, run the set-user cmdlet and specify the -RemotePowershellEnabled parameter. 
C. Create a conditional access policy and apply the policy to Admin1. 
D. For Admin1, run the set-user cmdlet and specify the -RemotePowerShellEnabled parameter. 



Question # 19

You have a hybrid deployment between a Microsoft Exchange Online tenant and an onpremises Exchange Server 2019 organization. Several users hosted in Microsoft 365 report that when they send email messages to mailboxes hosted in Exchange Server 2019, the messages fail to be delivered. You need to examine the non-delivery reports (NDRs) sent to the Microsoft 365 mailboxes. Which two actions should you perform? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

A. From an on-premises Exchange server, use the transport logs. 
B. From an on-premises Exchange server, use the SMTP logs. 
C. From the on-premises Exchange admin center, use a message trace. 
D. From the Exchange admin center, use a message trace. 
E. From the Exchange Management Shell, run the Get-Queue cmdlet. 



Question # 20

You have a Microsoft Exchange Server 2019 organization. You need to configure the organization to use Exchange Online Protection (EOP) for the message hygiene of all inbound and outbound email. Which three actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point. 

A. Install an Exchange hybrid server. 
B. For the organization, configure an MX record that points to Microsoft Office 365. 
C. Create a hybrid organization relationship. 
D. From the on-premises organization, create a connector to relay outbound email to Microsoft Office 365. 
E. Create a Microsoft Office 365 Connector to the on-premises organization. 
F. Create on-premises transport rules to control the outbound message flow. 



Question # 21

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?

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



Question # 22

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?

A. Enable the Zero-hour auto purge (ZAP) email protection feature.
 B. Enable the safe list on a connection filter. 
C. Edit the default mail flow rule to bypass the spam filter. 
D. Modify the IP Allow list of a connection filter policy. 



Question # 23

You have a Microsoft Exchange Server 2019 organization. You need to ensure that all email is retained for one year, and then moved to an archive mailbox. What should you use? 

A. a default policy tag 
B. a data loss prevention (DLP) policy 
C. a personal tag
D. a retention policy tag 



Question # 24

Your company has an Exchange Server 2019 organization that has servers deployed in two Active Directory forests named adatum.com and contoso.com The organization contains five Mailbox servers and two Edge Transport servers. You deploy Microsoft 365 and configure Exchange Online. You plan to configure hybrid mail transport. You need to identify the number of third-party CA certificates that must be used in the deployment. What is the minimum number of certificates?

A. 1 
B. 2 
C. 4 
D. 5 



Question # 25

You manage a Microsoft Exchange Server 2019 hybrid deployment. All user mailboxes are located both on-premises and in the cloud. You need to configure the deployment so that the on-premises mailboxes can access the public folders. Which three commands should you run? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point. 

A. Sync-MailPublicFolders.ps1 
B. Set-OrganizationConfig –PublicFoldersEnabled Remote 
C. Import-PublicFolderMailboxes.ps1 
D. Sync-MailPublicFoldersCloudToOnprem.ps1 
E. Set-OrganizationConfig –PublicFoldersEnabled Local –RemotePublicFolderMailboxes PFMailbox1 



Feedback That Matters: Reviews of Our Microsoft MS-203 Dumps

Leave Your Review