Right after the email is confirmed: one notification, one message from Heimly in Messages, and the welcome email that already goes out today. All three point to the same getting started list.
One welcome per person, after the email is confirmed. Signing in again, switching accounts or a second device never sends another.
The second line and the first button follow the persona: a renter is pointed to saving a search, an agent to the directory profile.
The welcome email already goes out on confirmation. It gains the same persona line and a link to the list.