Forum Discussion
Exchange 2016 - Problem adding users to Send As or Send on Behalf
I just took over as an exchange admin at a company and am trying to perform a relatively simple task. All I need to do is to grant a user "Send As" and "Send on Behalf". Simple huh? The problem...
I have encountered this same issue
FIX : (check your config files in the Pickers dir)
I have a hybrid environment and found that "RemoteUserMailbox" was missing in the string for searches in SendAsPicker.aspx and also SendOnBehalfOfPicker.aspx
\Program Files\Microsoft\Exchange Server\V15\ClientAccess\ecp\Pickers\
This answer is AMAZING. I don't know how you found this, but it saved me. Also in our case, once I updated the .aspx page, I ran into a permission error ("Active directory response: 00000005: SecErr: DSID-031521D0, problem 4003 (INSUFF_ACCESS_RIGHTS), data 0").
The cause? "By default, Exchange Trusted Subsystem is not granted the "modify permissions" permission. This causes the Add-ADPermission cmdlet to fail with an Access Denied error in some circumstances." The answer was to modify the OU container holding the group(s) and allow "Exchange Trusted Subsystem" rights to modify the groups.
The steps are here:
https://support.microsoft.com/en-us/topic/access-denied-when-you-try-to-give-user-send-as-or-receive-as-permission-for-a-distribution-group-in-exchange-server-505822f4-8dca-7b97-d378-c8416553f6d2
I hope this helps someone else out!
The cause? "By default, Exchange Trusted Subsystem is not granted the "modify permissions" permission. This causes the Add-ADPermission cmdlet to fail with an Access Denied error in some circumstances." The answer was to modify the OU container holding the group(s) and allow "Exchange Trusted Subsystem" rights to modify the groups.
The steps are here:
https://support.microsoft.com/en-us/topic/access-denied-when-you-try-to-give-user-send-as-or-receive-as-permission-for-a-distribution-group-in-exchange-server-505822f4-8dca-7b97-d378-c8416553f6d2
I hope this helps someone else out!