The steps, in order, with nothing implied that Koovira does not do.
Four or five steps, and what each one actually does.
Answered plainly, including the things Koovira does not do.
Only lists you have consent to email. Unsubscribes are honoured.
Nobody can promise that. Authenticating your sending domain and mailing people who asked for it is what helps.
Yes. Subscriber data and campaign records are private to your business account.