Looking at the higher level document* the Post Office seems to require the Mozilla ID. It's possible that that just means "A unique ID for that server", but I'

Looking at the higher level document* the Post Office seems to require the Mozilla ID. It's possible that that just means "A unique ID for that server", but I'd like that to be explicit. * https://wiki.mozilla.org/Services/Notifications/Push#Post_Office https://wiki.mozilla.org/Services/Notifications/Push#Post_Of...