Unfortunately not.... But it's also widely known that it isn't (and we still might be able to fix that, I'm sure you could tell me more about it)
Email on the other side is used by everyone and 99% of people think their gmail emails are private... They don't even think about the fact that there is a underlying protocol that is flawed on that regard fromthee ground up
There is a lot of confidential stuff sent over email, totally unencrypted... Some of those you don't even hae other options to receive them nowadays... No more paper, no extra secured/encrypted communication