What is the benefit of signing an encrypted email

[David Smith]

jimbob palmer wrote:
> In Firefox I can sign or encrypt or encrypt+sign an e-mail.
> 
> In what case would I want my encrypted emails also signed? Does it
> provide any additional benefit over a pure encrypted email?

Signing and encrypting serve different purposes.

Encrypting a mail ensures that only the intended recipient(s) can read it.

Signing a mail allows the recipient(s) to check that it really was you
that sent it, and not someone else masquerading as you.