Office 365 Delegate Access To All Mailboxes

[FN-GM]

Hello,

 

I am migrating from Office 365. I need to delegate an account to have full access rights to all mailboxes.

 

I am using this command:

 

Get-Mailbox -ResultSize unlimited -Filter {(RecipientTypeDetails -eq 'UserMailbox')} | Add-MailboxPermission -User [email protected] -AccessRights FullAccess -InheritanceType all

 

But I get this error kick up every now and then

 

The operation couldn't be performed because 'Name Here' matches multiple entries.

 

Does anyone have any tips on how I can adapt the command please?

 

Thanks

[djm968]

Have a look at this, might throw some light.

 

https://community.spiceworks.com/topic/810922-multiple-entries-error

[FN-GM]

I have already done that, tried that first. Still have the same error.

[Chuckster]

Try this...

 

Get-Mailbox -ResultSize unlimited -Filter {(RecipientTypeDetails -eq 'UserMailbox') -and (Alias -ne 'Admin')} | Add-MailboxPermission -User [email protected] -AccessRights fullaccess -InheritanceType All -AutoMapping $false 

[snagrat]

Just create a user with Application Impersonation permissions and this should work.

 

Worked for me when doing a O365 to Google migration

[FN-GM]

Try this...

 

Get-Mailbox -ResultSize unlimited -Filter {(RecipientTypeDetails -eq 'UserMailbox') -and (Alias -ne 'Admin')} | Add-MailboxPermission -User [email protected] -AccessRights fullaccess -InheritanceType All -AutoMapping $false 

 

Thanks will try it out

 

Just create a user with Application Impersonation permissions and this should work.

 

Worked for me when doing a O365 to Google migration

 

Did you do an IMAP migration? I am not using the web interface but GSMME as it seems more reliable and quicker.

[snagrat]

Web interface was quick enough for us. Just uploaded a csv and the migration happened.