POST http://server:8080/Foo/servlet
Content-Length: 332
Content-Type multipart/form-data; boundary=xYzZY
--xYzZY
Content-Disposition: form-data; name="email"

this_email@address.com
--xYzZY
Content-Disposition: form-data; name="clientCertReq"

/tmp/CERTS/new.cr.DER
--xYzZY
Content-Disposition: form-data; name="submit"

submit
--xYzZY--