Unspecified vulnerability in Websense TRITON AP-EMAIL before 8.0.0 has unknown impact and attack vectors, related to port 17703.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-2853
http://www.websense.com/support/article/kbarticle/Vulnerabilities-resolved-in-TRITON-APX-Version-8-0