The microphone should be s

The microphone should be suspended in a shock mount. A typical shock mount is a tube with rubber bands at each end suspending the mic, so that the mic never touches anything hard, thus no vibrations are transferred. The key here is that the mic is SUSPENDED. It doesn’t do a lot of good to just have a rubber gasket between camera and mic. B&H sells various mounts, from $29 to over $100. Here are some links to an Azden, a Beyer, and a Rode:

Azden:
http://www.bhphotovideo.com/c/product/225809-REG/Azden_SMH1_SMH_1_Shock_Mount_for.html

Rode:
http://www.bhphotovideo.com/c/product/398316-REG/Rode_SM3_SM3_On_Camera_Shockmount.html

Beyer:
http://www.bhphotovideo.com/c/product/108256-REG/Beyerdynamic_407186_EA86_Camera_Shoe.html

Hope this helps, 🙂
Ken Hull