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 instruct User1 to reduce the size of the email message.
Does this meet the goal?

You have a Microsoft Exchange Server 2019 organization.
You implement hybrid connectivity to Microsoft 365.
You need to ensure that users can use the Microsoft Outlook mobile app on their device to access their onpremises mailbox.
What should you do?

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.
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Your company has an Exchange Online tenant that contains 2,000 mailboxes.
A partner company named Fabrikam, Inc. uses a third-party messaging solution. The outbound SMTP server for Fabrikam uses an IP address of 131.107.2.22.
You discover that several email messages from the fabrikam.com domain are erroneously marked as spam.
You need to ensure that all the email messages sent from the fabrikam.com domain are delivered successfully to the user mailboxes of your company.
Solution: You create a remote domain.
Does this meet the goal?

You have a Microsoft Exchange Online tenant that uses an email domain named @contoso.com.
You recently purchased an email domain named fabrikam.com.
You need to ensure that all the users in the tenant can receive email messages by using the @fabrikam.com email domain. The solution must ensure that the users can continue to receive email by using the @contoso.com email domain.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

You need to generate a report for the mobile devices that meets the technical requirements.
Which PowerShell cmdlet should you use?