This is probably the most elegant solution to a PGP signature. > this seems like it should be a standard and basic part of all email programs now I can't spea

This is probably the most elegant solution to a PGP signature. > this seems like it should be a standard and basic part of all email programs now I can't speak with authority on this, but it feels like this would be adding overhead to something that doesn't necessarily need it. Email is supposed(!) to be relatively simple. I can think of many cases where you would definitely want to have PKI integrated into your emails, but I can think of just as many cases where it's unnecessary overhead in email clients as a standard. However, I admit that I could be wrong.