...It has also specific support for pop3s, sip, smtp and explicit ftps.
Tests for heartbleed (including dtls).
Furthermore a separate tool, SSLPressure, not using openssl can be used to check the whole spectrum of possible SSL protocols on a server.
Can also be used for testing ssl for mssql-servers (was added since nessus did not support this) and contains mitm poc for stripping ssl from mssql-connections.