zaus

Converts external submission from <a href="https://wordpress.org/plugins/forms-3rdparty-integration/" rel="ugc">Forms: 3rdparty Integration</a> plugin to an XML or JSON post; optionally can add custom headers (to allow SOAP submissions) or transform/combine separate fields into nested values.
This plugin can turn the 3rdparty mappings into XML elements, so that each form post will be the value (or attribute) of an XML element.

Forms: 3rd-Party Xml Post

Converts submission from Forms 3rdparty Integration to xml/json, add headers, or nest fields.

faisaliefr

Instant Contact lets you add a contact form to your WordPress blog. Simply load it into your plugins folder, activate it in your WordPress backend and place any shortcode / embedded code on the settings page you want the content / form to display on.
Compatible with:
<ul>
<li>Contact Form 7</li>
<li>Gravity Forms</li>
<li>Contact Coldform</li>
<li>Quick Contact Form</li>
<li>Responsive Contact Form</li>
<li>Simple Basic Contact Form and many more…</li>
<li>Any embedded code</li>
</ul>

Instant Contact – Generate leads and convert them into Customers

Instant Contact - supports all cf7, gravity forms, and form embedments...

Forms: 3rd-Party Xml Post vs Instant Contact – Generate leads and convert them into Customers