If you have a Tiger (10.4) server with SSL certificates that you are going to replace with a new Leopard (10.5) server, using the same name and SSL certificates, you may encounter a tiny gotcha in the Mail service - an error that may look something like this:
Postfix TLS Error: cannot get private key from file /etc/certificates/mycert.key
...after "successfully" importing the old cert.
You may also find that your SSL mail clients won't be able to connect either.
- cd /etc/certificates
- cp mycert.key mycert.key.saved
- openssl rsa -in mycert.key -out mycert.key.out
- cp -p mycert.key.out mycert.key
- postfix reload