I had been supporting MailSend for about fourteen years. I had regularly fixed bugs and added a feature here or there. It was showing its age regarding modern mail agents that could leverage secure SSL connections to SMTP servers. I had written up a document on using the open source program STunnel as an intermediary between MailSend and SMTP/SSL servers, but that just seemed to be very kludgy. It was kludgy and I was taking money for a program and telling people how to use a free program to get more out of it.