Because security is the name of the game. And the good people at SMTP.com want some type of validation that there is a real human being properly identifying himself or herself when attempting to purchase a $25 a month service. Which is a bit ridiculous when you first think about it. But in the world of bad actors and spammers, I can see how being overly cautious probably makes them a great company.
Cheers to SMTP.com for them taking the extra step for validation.
Steve Agnew aka Jack Agnew