Set-Mailbox -RequireSenderAuthenticationEnabled

In Easy365Manager, you configure the “Require that all senders are authenticated” setting to enhance email security by controlling whether external senders need to authenticate before sending emails to a specific mailbox.

Watch a quick video guide here.

You can quickly locate the setting by opening up properties for a user, selecting the Mailbox tab, and clicking on Delivery Restrictions.

This opens up the following form, where you find “Require that all senders are authenticated” in the “Accept message from” section:

In Easy365Manager, the “Require that all senders are authenticated” setting corresponds to the ‘RequireSenderAuthenticationEnabled’ parameter of the Set-Mailbox PowerShell command.

The PowerShell command “Set-Mailbox -RequireSenderAuthenticationEnabled” is used to control the senders or members who are allowed to send emails to a specific mailbox in Microsoft Exchange Online environments:

Set-Mailbox -Identity lene.hau -RequireSenderAuthenticationEnabled $True

When this command is executed with the parameter set to True, the mailbox will only accept emails from authenticated external senders. Any sender not authenticated will be rejected, reducing the likelihood of malicious or unauthorized emails reaching the mailbox.

By employing “Set-Mailbox -RequireSenderAuthenticationEnabled,” organizations can significantly bolster their email security posture. It acts as an added layer of protection against unsolicited and potentially harmful emails, contributing to safeguarding sensitive information, maintaining user trust, and mitigating security risks. This command offers a practical approach to managing mailbox access and helps in maintaining a more controlled and secure email communication environment.