+# to. Don't forget to create the file with 400 first:
+sudo touch $DOMAIN.pem
+sudo chmod 400 $DOMAIN.pem
+sudo sh -c "cat $DOMAIN.key $DOMAIN.crt > $DOMAIN.pem"
+# Also create a full chain cert, which is used by dovecot
+sudo sh -c "cat $DOMAIN.crt ca/startssl/all.pem > $DOMAIN.crt-chain"