Both sending SMSes and emails require relationship management with the other companies involved - the mobile networks and the large email providers - and, relat

Both sending SMSes and emails require relationship management with the other companies involved - the mobile networks and the large email providers - and, related, large-scale sender-side spam prevention. Aside from that, Twilio can now act as almost a one-stop shop for your outbound communication needs - all that’s left is physical letters.