imapd-ssl: Unexpected SSL connection shutdown.

[TiTex]

isn't it easyer to just get a free certificate from http://cert.startcom.org/ or www.cacert.org ?
however you can allways generate a self signed certificate

this will generate a single file containing your cerificate and private key in a single file cert.pem in your home dir

openssl req -new -x509 -days 1000 -nodes -out ~/cert.pem -keyout ~/cert.pem

or separate cert and key

openssl req -new -x509 -days 1000 -nodes -out ~/cert.pem -keyout ~/key.pem