That really looks sweet! But glancing over the FAQ, it's not clear to me if it doesn't do IMAP&SMTP with the big players, or if it doesn't feature IMAP&SMTP at all?
https://www.dropbox.com/s/bv82he6wlcea3d2/Screenshot%202016-...
Looks like it cannot be disabled?
Right now that data comes from FullContact. If it's wrong, you can write them to dispute/update it. https://support.fullcontact.com/knowledgebase/articles/47266...
Despite N1 calling their cloud engine "open source", the authentication part isn’t – and isn’t included.
If you set up the open source variant yourself, you’ll end up without any authentication.
The tokens to auth are world-readable under /accounts or /n