How do I add a non-Gmail or second account?
Lonzo works with one Google account today, connected from Account → Connections. Aggregating a second or non-Gmail account is planned for the Lonzo Assistant plan, which is coming soon, so there is currently no way to add one.
If your main mailbox is somewhere other than Gmail, Lonzo can't read it — the assistant works through your connected Google account. We'll say so here when multi-account support arrives.
See also: What will Lonzo Assistant add? · How do I connect Google?