On 2020-03-05 at 09:02 +0000, Graham McAlister via Exim-users wrote:
> Suspect my distro build uses openssl instead of gnutls and my version
> of openssl is 1.1.0 but ed25519 support is in 1.1.1
>
> So, either I build exim to use gnutls, or I upgrade openssl to 1.1.1
>
> That's my plan, and will report back on results.
Note that the Exim source ships with a documentation file `openssl.txt`
to help with exactly this sort of situation: you need a different
OpenSSL than is shipped by the OS, you need to custom-build it for Exim,
you don't want to mess with any other installs or risk breaking anything
else.
-Phil