i went all in on this because it sounded so good. never again.
major problems with this service:
1. many categories of businesses are not allowed.
2. deliverability is abysmal, i converted an old list of about 75 addresses that had 2 or 3 users that were not getting emails reliably and only ONE was delivered.
3. then KIRIM helpfully unsubscribed the entire list as inactive users.

COMPLETELY USELESS!!!