I have a ticketing project where my users access a portal to create tickets or send emails. I don't understand why some have an associated email address and others don't. Or why some are invited and others aren't? I'd like everyone to have an email address because I use it for other integrations. I can't attach it, but some clients give me their email and it says "invited," while others appear with a private email address and don't say anything about an invitation. Thanks.