To prevent a company from receiving phishing email messages, the appropriate approach would be to configure a spam filter policy. Spam filters are designed to detect and block unsolicited and potentially harmful emails, which includes phishing messages. Configuring a mail flow rule can also be part of this spam filter policy to fine-tune the filtering process. Threat management policies are broader and encompass various types of threats beyond just phishing, whereas creating a spam filter policy is more directly related to handling unwanted or potentially dangerous emails such as phishing.
To ensure the primary email address of all new mailboxes uses the new domain, you should use the Set-EmailAddressPolicy cmdlet. This command is used to modify email address policies in Exchange Online, applying the specified email templates to new recipients as per the configuration defined.
The requirement is to deliver DLP incident reports via email as often as possible. Of the given options - annually, monthly, weekly, and quarterly - the most frequent interval is weekly. Therefore, the appropriate choice is to configure the reports to be delivered weekly.
To detect all users in your company's Microsoft 365 subscription who have a Microsoft Office 365 license due to belonging to a group, and ensure that the group used to assign the license is included in your results, you should access the Azure portal and navigate to the Licenses blade. This is because the Licenses blade allows you to manage and view the licenses assigned to users and groups, which helps you identify which users have licenses through group membership and see the groups involved.
Microsoft 365 retains PST files in the Azure Storage location for your organization for 30 days after the most recent import job was created. After this period, the files are automatically deleted. This 30-day retention period ensures that you have sufficient time to complete the import job while also managing storage efficiently.