Way back when, at the start of my career, I periodically sent out HTML email marketing messages to a big list of my clients and prospects about a service or new opportunity. At the time HTML email marketing was fairly new to the marketing world, and wasn’t yet widely adopted.
I made the mistake, as did many others, of sending these messages right from Outlook like I did with all of my other email messages. Why not, right? Wrong!
In fact, one day some people stopped receiving email from me completely!