[:SSL/CertificateCreation:Creating SSL certificates]
[:SSL/DovecotConfiguration:Configuring Dovecot to use SSL certificates]
[:SSL/CertificateClientImporting:Importing CAs and self-signed SSL certificates to clients]
SSL works pretty much the same universally, so for more information about SSL you can see for example [http://httpd.apache.org/docs/2.2/ssl/ Apache's documentation].
- Dovecot uses OpenSSL, so whatever information you find about it applies also to Dovecot.