I've just managed to get my certificate from
CAcert to work with Mail. I had used the non-assured certificate at first, but Mail never recognised it. I got myself assured today, and created a new certificate. To get it to work:
- Register for an email certificate on CAcert.
- Find an assurer, or two, to get the number of points you require to include your name in your certificate
- Request your certificate, and be sure to check 'Include Your Name on Certificate.'
- Once you get the email saying your certificate is ready, click the link to download your certificate
- You willl get a file called 'getcert.php', rename this to certificate.crt
- Double click on this file and put it in a keychain of your choice. (I put mine in the login keychain)
- Open Mail. Send your email using S/MIME.
[
robg adds: I haven't tested this one.]