You can find a sprinkling of web sites that promote this type of eQSL, but you will never find more than a handful of people using them. That will become immediately apparent when you study the diagram, because there is no one organization with a vested interest in accumulating a large user base. Notice that each ham must create his own QSL card design using any software package he wants to. For instance, that function could be performed by a worldwide digital signature server such as is available through ZixMail . In this configuration, nobody has to look up any e-mail addresses.
Nobody has to purchase graphics software.
Nobody has to purchase or learn how to use cryptographic software. It is more complicated, less organized, and eQSLs cannot be validated after they have been printed. We believe it is for this reason that eQSL.cc has received the huge groundswell of support, with the total card count in our database doubling roughly every 6 weeks. Anything else just adds complexity for no apparent benefit. Permission granted to reprint this article in whole or in part.