http://www.youtube.com/watch?v=TqKSTirk6Vg
Most of dynamic addresses there translate to "ep-reverse.nimbus.bitdefender.net", and you say you use BitDefender, this - 63.228.223.103 - is "steamcommunity.com", and one with different port "205.188.155.221:995" is indeed a mail server as specified by port.
It very well might be just your router bullshitting you. Try asking at dslreports.com, or better yet, try searching there for similar problems.
http://www.youtube.com/watch?v=TqKSTirk6Vg