Link to home
Start Free TrialLog in
Avatar of Arun Kumar V
Arun Kumar VFlag for India

asked on

Unable to access a mailbox with Full Access and inherited permissions

Unable to access\connect to a user mailbox even when having full-access rights and also inherited accounts that have Full Access

Exchange Server 2016

When accessing with any of the 'Domain Admin' accounts message read 'You don't have permission to open this mailbox', have already removed and re-added the permissions but still receiving same deny.
Avatar of FOX
FOX
Flag of United States of America image

Does the Domain admin account have a mailbox?
Avatar of Arun Kumar V

ASKER

There are 4 accounts part of 'Domain Admins' and all four have mailboxes
Open Exchange Management shell and run the following to verify if your user has rights

Get-MailboxPermission "sharedmailboxemailaddress" | Select User,AccessRights

Arun get the mailbox database servername that holds the mailbox and run the below command to add the domain admins

get-mailboxdatabase -server "<servername>" | add-adpermission -user "Domain Admins" -AccessRights GenericAll
Executed the cmd
Domains Admins - FullAccess
User generated image
Arun get the mailbox database servername that holds the mailbox and run the below command to add the domain admins

get-mailboxdatabase -server "<servername>" | add-adpermission -user "Domain Admins" -AccessRights GenericAll                                  

Executed and received WARNING: The appropriate access control entry is already present on the object.

1.  I want you to open up webmail with the domain account
2.  At the top right click your initials and then "open another mailbox"
3.  Enter the email address of the mailbox and see if it opens up

When accessed from any member of 'Domain Admins' who also has mailbox
Note: Issue is accessing to only 1 mailbox, no issues when accessing mailboxes  of any other other mailboxes on same Exchange DB
User generated image

ASKER CERTIFIED SOLUTION
Avatar of FOX
FOX
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
When executed: Remove-MailboxPermission "emailaddressofthemailbox" -User "Domain Admins" -Deny -InheritanceType ‘All’ -AccessRights ‘FullAccess’  (used actual email address)

the result I am seeing is: "WARNING: An inherited access control entry has been specified: [Rights: CreateChild, ControlType: Deny]  and was ignored on object "
look in ADSIEdit in the Configuration section for Exchange and check where your rights are applied at. See Configuration, Services, Microsoft Exchange, <org name> and look at the Security permissions at that level.

 two properties you can remove deny rights is Send-As and Receive-As , this will give you full Mailbox permissons and Send As  permission on the mailbox.
I am able to access the mailbox, thank you FOX for the consistent help that resolved the issue