the email property should be a list of emails

[michael-kerscher]

Other fields like phone-numbers and enckeys already are lists. Making the email field an "emails" list field would be a good idea as there might be more than one email per organisation (and therefore a reason for multiple enckeys). You could store multiple emails comma separated but then a client has to parse this list if he wants to know which encryption key is used for a specific email address, etc.

[aaronkaplan]

agreed, makes sense.