Feature: Opt-out for SSL certificate verification
For using encrypted mail services via SMTP, e.g. Protonmail offers a local bridge application. While trying to use this client with CL-SMTP I get the following error:
SSL verify error: 18 X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
To get this bridge working we basically have to opt-out of SSL Certificate verfication of cl+ssl. This can be done by supplying the value NIL to the verify keyword of cl+ssl:make-ssl-client-stream and adding a keyword verify / verify-certificate (default value T) to cl-smtp:send-email and with-smtp-mail.
I would be happy to supply a MR if granted access to this project.