Eloqua form integration

I created a form in Oracle Eloqua and am now doubting how to integrate with form 7 / wordpress…

The code I have generated with Oracle Eloqua is this one:

<form method="post" name="EbiStayUpdated" action="https://s1392324200.t.eloqua.com/e/f2" onsubmit="setTimeout(function(){if(document.querySelector){var s=document.querySelector('form#form63 input[type=submit]');if(s){s.disabled=true;}}},100);return true;" id="form63" class="elq-form" >
    <input value="EbiStayUpdated" type="hidden" name="elqFormName"  />
    <input value="1392324200" type="hidden" name="elqSiteId"  />
    <input name="elqCampaignId" type="hidden"  />
    <input type="hidden" name="elqFormName" value="EbiStayUpdated">
<input type="hidden" name="elqSiteID" value="1392324200">
    <div id="formElement0" class="sc-view form-design-field sc-static-layout item-padding sc-regular-size" >
      <div class="field-wrapper" >
      </div>
      <div class="individual field-wrapper" >
        <div class="_100 field-style" >
          <p class="field-p" >
            <label for="field0" class="label-position top " >
              Voornaam </label>
            <input id="field0" name="firstName" type="text" value="<eloqua type='emailfield' syntax='FirstName' />
" class="field-size-top-large"  />
          </p>
        </div>
      </div>
    </div>
    <div id="formElement1" class="sc-view form-design-field sc-static-layout item-padding sc-regular-size" >
      <div class="field-wrapper" >
      </div>
      <div class="individual field-wrapper" >
        <div class="_100 field-style" >
          <p class="field-p" >
            <label for="field1" class="label-position top " >
              Email Address
            </label>
            <input id="field1" name="emailAddress" type="text" value="<eloqua type='emailfield' syntax='EmailAddress' />
" class="field-size-top-large"  />
          </p>
        </div>
      </div>
    </div>
    <div id="formElement2" class="sc-view form-design-field sc-static-layout item-padding sc-regular-size" >
      <div class="field-wrapper" >
      </div>
      <div class="individual field-wrapper" >
        <div class="_100 field-style" >
          <p class="field-p" >
            <label for="field2" class="label-position top " >
              Multiple Picklist
            </label>
            <select id="field2" name="multipleSelectMenu" multiple="multiple" class="field-size-top-large" >
              <option value="Marketing" >
                Marketing
              </option>
              <option value="Sales" >
                Sales
              </option>
              <option value="Service" >
                Service
              </option>
              <option value="IT" >
                IT
              </option>
            </select>
          </p>
        </div>
      </div>
    </div>
    <div id="formElement3" class="sc-view form-design-field sc-static-layout item-padding sc-regular-size" >
      <div class="field-wrapper" >
      </div>
      <div>[recaptcha size:compact]</div>
      <div class="individual field-wrapper" >
        <div class="_100 field-style" >
          <p class="field-p" >
            <input type="submit" value="Submit" class="submit-button" style="font-size: 100%; height: 24px; width: 100px">
          </p>
        </div>
      </div>
    </div>
  </form>

When I put this in the plugin the result is not as expected and the form does not work anylonger. Anyone with bright ideas how to solve?

https://wordpress.org/plugins/contact-form-7/