I asked about this on the PGP mailing list at one point, and I think I was told that the best solution is to start emails with "Hi <recipient>," which seems like a funny low-tech solution to a (sad) problem.
The solution to this problem without needing to modify your message is to use a protocol that will sign, then encrypt, then sign again. See section 5 here [1] or section 15 here [2].
The solution to this problem without needing to modify your message is to use a protocol that will sign, then encrypt, then sign again. See section 5 here [1] or section 15 here [2].
[1] https://theworld.com/~dtd/sign_encrypt/sign_encrypt7.html [2] https://computerresearch.org/index.php/computer/article/view...