Using REAL certs with courier-imap?

[BigBaaadBob]

I'm again setting up a server using http://www.gentoo.org/doc/en/virt-mail-howto.xml, but I'd like to use something other than the self-signed certificates for IMAP and POP. For example a cert from Startcom. This howto doesn't address that.

How do I do that?

[nobspangle]

You need to create a certificate signing request using openssl. This will also generate your private key. Make sure you set the common name of your certificate to the fqdn of your imap server.

Send the signing request off and you will receive the certificates back from your supplier. Then just make sure both the private key and the certificate are referenced by the config file for courier. If your certificate has intermediate certs before the root you will need to reference those as well.