I have a bit of a problem that I'm hoping this community can assist with.

I have a Servicedesk user who needs to be able view tickets for 2 different accounts. One of the accounts is the one he logs in with, so there's no problem there. The other account is his external e-mail address that he uses to send in tickets to Servicedesk via e-mail. When he e-mails the tickets, they get logged under his external e-mail instead of his Servicedesk login. So when he goes to view the tickets that were e-mailed he gets the error below.

Is there a way to give the Requester access to view one specific account in addition to their own?