Allow 3rd party contact without adding a contact

Sometimes when dealing with a job we need to email a 3rd party. Currently in order to do this we need to add them as a contact, which in tern means we need to associate them with a company. This doesn’t make sense for one of points of contact that aren’t related to our client.

It would be great if we could add a 3rd party conversation by just specifying a email address, without creating a contact.