Sending email with AWS SES (Simple Email Service) and getting SPF failures?

I got my first email address somewhere in 1994, shortly after logging into my first BBS. This was just a year before most of the world got on the internet with Windows 95 and modems, but I continued using BBSes along with the general internet until at least '98. I wouldn't say I was hooked, but I would say that email, and networked communication has been very important to me for 31 years. Back in…