Symptoms

When you run the Set-AcceptedDomain cmdlet to modify existing accepted domains in your organization in Microsoft Exchange Server 2016, you may find the MatchSubdomains parameter isn't available.

Cause

This issue occurs because the MatchSubdomains flag isn't enabled for Exchange Server 2016.

Resolution

For Exchange Server 2016, install Cumulative Update 9 or a later cumulative update for Exchange Server 2016.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

Learn about the terminology that Microsoft uses to describe software updates.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.