HI i'd like to know about how many domains and email boxes will i need lets say if i start with 5 mailboxes plan? Which mailboxes should i get? How many emails can I send from new domains or older domains? What do you consider new or not new domains? Can they be .online domains as well? I already validated my emails with another company. I was thinking to email the validatation statuses: ok and valid. How about catchall, can i email them too? I assume i will not have to pay you for veriying the emails especially if i already verified them with another company? Will i need instantly as well or you have unibox and manage email sequences and automations?