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I have a problem where I found out that a mailbox had a group, which is "everyone” and not "domainname\everyone" have full control permissions on it.
whenever i type in :
remove-MailboxPermission -Identity "userinfo" -User "everyone" -inheritanceType "all" -AccessRights "fullAccess"
i get the following result :
Unable to delete the current access control on the object "userinfo" for the account "domainname\everyone" because that entry does not exist on this object.
sorry if the translation is a bit off.
I think that Office 2010 was migrated from a 2003 before and it may be the cause on why the permission is listed like that.
What is worrying me right now is that if i login as anyone's webmail, i can access this person's e-mails right now.
But i am clueless on how to fix it after looking for solutions on the web for more hours than I should have and I couldnt get to talk to someone that have had that issue occured to him yet.
What i'm looking for is a way to remove a permission without it resolving my domain name, on a way to completely flush any permissions other users have on that mailbox.
-I tried deactivating it and then re-linking it, but everything stayed the same, then i was looking for a way to completely delete the mailbox immediately so the user does not have to wait for the retention time to get back access to a brand new mailbox that I HOPE? Would have all of its access set back anew. But the only powershell commands i found that would delete the mailbox immediately asks me if i am really sure i want to do that because its gonna delete the AD user as well.
Any help on any way to resolve this problem will be greatly appreciated.
Hi,
How about the following cmdlet?
Get-MailboxPermission -Identity $User | where {($.User -notlike "NT AUTHORITY\SELF") -and ($.User -notlike NTAUTHORITY\SYSTEM")} | Remove-MailboxPermission
You can add ore required users in filters and enhance the cmdlet before applying it
Hi,
Thank you for your answer, i get the idea of what this should be doing, unfortunatedly something is probably wrong with the cmdlet. Or i didnt understand it correctly.
After -Indentity, i changed the $user for the username of a test mailbox that has other permissions set for testing purpose and my result is that it accepts the command and put me right after an empty line starting with
>
where i could input more text or exit hitting ctrl+C
Also, the permissions remained untouched.
if i must keep $user, can you please tell me how to make it apply to only the user that have this unique permission problem?
Thank you.
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Unable to delete the current access control on the object "userinfo" for the account "domainname\everyone" because that entry does not exist on this object.
According to this warning message, I am assuming that if it actually means "fullaccess" is not granted for the mailbox for "domainname\everyone".
May I know how you found out that "everyone” has full control permissions on the mailbox? Is "eveyone" or "domainname\everyone" listed in EMC or in the output of the command below?
Get-MailboxPermission “userinfo” | where {$_.AccessRights -like “*FullAccess*”}
If Everyone is displayed in EMC > Manage FullAccess Permission, please have a go and see if you are able to delete Everyone there:
In the EMC and in the result of get-mailboxpermissions the permission is stored as "everyone" and not "domainname\everyone"
Deleting this permission from the EMC was the first thing i tried, i then copied the powershell command it showed that have failed to get more information about why it fails and that is how i figured out the permission could not be deleted because when i was trying to delete "everyone" it automatically looked up to add the domain name when deleting it thus making it un deletable from the ways i know and it is the reason why it returns to me that it cannot delete a permissions "domainname\everyone" because it does not exist as the permission really is attributed to "everyone" with no domain name, but it is still applied to everyone on my domain because i can use anyone's web mail and open this person's e-mails.
Could you please share the exact error when attempting to delete the permission from EMC?
Actually this is weird for me as I am able to grant permissions for "Everyone" rather than "domainname\everyone" in Exchange 2010, see image below:
Besides, how about try readding the permission and see if it can be removed?
Add-MailboxPermission -Identity <mailboxname> -User "everyone" -inheritanceType "all" -AccessRights "fullAccess"
Remove-MailboxPermission -Identity <mailboxname> -User "everyone" -inheritanceType "all" -AccessRights "fullAccess"
Okay,
When looking up "Tout" as in tout le monde, because, sorry my console is french, i only get to add domainname\tout le monde.
I made sure the search range was set to show all recipients in the forest
That would give me that result.
When clicking manage after selecting "Tout le monde"
I get the result shown on the third screenshot
Copying and pasting the same command in exchange management shell will give me this answer :
If you have succeeded into deleting the permission you have just added as shown in everyone.jpg , can you give me the powershell line it executed? is it possible that you use a different parameter than -user after the -identity or something?
Small update, i looked up for "Everyone" when trying to add permission and could find it when looking it up in english, adding it to the list of full access made the list look just alike, but i was a bit scared it would auto-mapp the mailbox to anyone if i clicked manage and it succeded in adding the permission, this mailbox does have some sensitive informations in it.
Second update : i did have a security group that was named "Tout le monde"
Renamed it to "Tout le mondes" so it have a name different than the built-in one for testing purpose.
Trying to delete the built-in "Tout le monde" is still trying to delete "domainname\tout le mondes"
Looking up "everyone" still shows me the built in group is named "Tout le monde" without the added "s" at the end.
Still, those two groups seem to be bounded or something because any user added to my A.D. will be added to the security group i renamed.
Third and final update : I know not if it was after the AD was updated from changing the sec. group from "tout le monde" to "Tout le mondes" or if it was when i removed the x400s that had "tout le monde" in them because i did have a distribution group named "Tout le monde" also... but the permission seem to have vanished, i was gonna go and try to delete it after renaming the distribution group's properties and when i opened my user, the real built in group everyone wasnt listed anymore along with the ability for everyone to open this person's e-mail using the webmail is gone as well.
I'll have to thank you for making me look into adding back the permission.
Final word i think will be something like, its a bad bad bad idea to name anything after a built-in group unless you want to confuse other IT workers and cause havoc.
Thanks @François Paiement for the update and really glad to know that you have sorted it out! Couldn't agree more that it's not a good idea to name an new created Exchange object after a built-in name.
By the way, you can click "Write an answer" and copy your last post into it, then accecpt it as an answer so that it can be benefical to others reading this thread :)