Configure message delivery restrictions on a resource mailbox Exchange 2013

We just recent migrated from Exchange 2010 to 2013.  In 2010, our solution to only let certain people schedule meetings in a resource calendar was to only allow those people to send emails to it and hide it from the address book (long story).  My problem is that now that it's migrated to 2013 we had an Exec (who's admin usually does the scheduling) was denied because he didn't have permissions to send to that mailbox.  Problem is I cannot find anywhere where you can configure delivery restrictions on a resource mailbox. The old settings carried over but I cannot change them.  Any advice where to find these setting would be greatly appreciated!
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

You should be able to do it via PowerShell

Set-Mailbox -Identity "NameOfResourceMailbox" -AcceptMessagesOnlyFrom "SpecificUserWithPermissions" -AcceptMessagesOnlyFromDLMembers "DLWithPermissions"

Open in new window

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Try give her the permission to book resource:

Set-CalendarProcessing -Identity "Car 53" -AutomateProcessing AutoAccept -BookInPolicy "",""
tomjhellerAuthor Commented:
Suriyaehnop -  That would not do it.  The user has always had permission to book the resource but in order to book it, you have to be able to email it.  

Cotillion - That actually what I did to get it to work.  I ran this command yesterday to add the person to the list.  Tested shortly after and didn't help but this morning I tested again and all was good.  I guess it just takes a while to take effect.
[PS] C:\Windows\system32>Set-Mailbox -Identity "Resource room" -AcceptMessagesOnlyFrom @

Thanks ya'll for your help!
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.