1) So we need to connect this up to our own smtp provider(s) to send email and to twilio fo rSMS

2) specifically for Sumo-lings that purchase this promotion, if more contacts are required in the future, do you offer an add-on in blocks of say 5k or 10k !? ...and how much would this likely cost a) a one-off fee per block or b) a discounted monthly sub ?

3) as a small freelancer, if we wish to use this to manage a small number of clients as well, can we add sub-accounts...if not, any plans to? Thanks