[Cryptography] PGP-Signed Email

[Moritz Bartl]

On 21.08.2017 04:30, Jason Richards wrote:
> So, my question then is: what are the benefits of always sending
> PGP-signed email and calling out when email is not signed, especially on
> open email lists such as this?

Here's a statement by K9Mail developer Vincent Breitmoser that
underlines your point in a blog post titled "Signed-Only Mails
Considered Harmful":

https://k9mail.github.io/2016/11/24/OpenPGP-Considerations-Part-I.html