keksus

This plugin allows you send messages to email from a page, post or from any other location that you specify in template. It can be used as a shortcode or a widget. 
Has a admin settings page where you can change the names of fields, enable or disable captcha, add custom CSS code.
<h3>Live Demo</h3>
<ul>
<li><a href="http://keksus.com/ae.html" rel="nofollow ugc">http://keksus.com/ae.html</a></li>
</ul>

Ajax Message

SARANGSoft

A flexible and super-easy Web Form plug-in for WordPress to create Contact form – or any kind of form – for web sites / apps and send the form data via email using AWS SES, Twillio SendGrid, or your own SMTP server / service.
Create web forms for – 
1. Contact Us 
2. Feedback 
3. Technical / Product Support Query 
4. Customer Complaint 
5. General Inquiry 
or whatever form you can think of.
<ul>
<li>
Simple UI to interactively design forms — no code to define any field or its behavior.
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<li>
Select data types for fields from the most commonly used pre-defined set.
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Supported data types: Single-line Text, Multi-line Text, Dropdown List, Multi-select Dropdown with Checkbox, Radio Buttons, Checkbox, Date, Note, CAPTCHA, reCAPTCHA.
</li>
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Set custom help/hint and validation error messages to show for each field.
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Specify prompt for each single-line and multi-line text field.
</li>
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Place fields anywhere within the form as needed.
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Set or edit the size (width) and position of fields within a row or across rows.
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Add one or more field(s) in one row.
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Edit all the details — type, messages, size, location — for any field at any time.
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Delete a field or an entire row of field(s), and create a new one, if needed.
</li>
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Customize the auto-generated default HTML and CSS as per your choice (e.g., to match the web site / page).
</li>
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Receive auto-generated email with form data via your own SMTP server / service or AWS SES or Twilio SendGrid — set up step-by-step using interactive UI, no coding needed.
</li>
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Completely clean code, with no script embedded.
</li>
</ul>
<h3>FEATURES</h3>
<ol>
<li>
Create and manage any number of forms using the plug-in.
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Use the same form or different forms for different web pages.
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Use custom email id[s] (not necessarily admin email only) as From (sender) and To (recipient) address for the form.
</li>
<li>
Interactively create form from WP administrator backend — add, remove, edit field values / options, place anywhere within form.
</li>
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Use Google reCAPTCHA (or normal CAPTCHA) to resist automated spam submissions.
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View the form in the right pane when it is being created; modify as needed and see that too.
</li>
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Use any one of five ready-made themes to display form in the frontend, or customize the selected theme as needed.
</li>
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Use default theme, so that the form uses site’s theme for which it has been created.
</li>
<li>
Send form data via auto-generated email using your SMTP server / service (easy), or AWS SES (API Signature v4) or Twillio SendGrid for better deliverability.
</li>
</ol>
<h3>HOW TO DISPLAY THE FORM TO THE USER (frontend)</h3>
<ul>
<li>
Copy the ‘Shortcode’ for the form from plug-in’s admin backend.
</li>
<li>
Use WordPress function ‘do_shortcode()’ with the above Shortcode in the PHP file for the required web page.
</li>
</ul>
NOTE: You can use the same ‘Shortcode’ in multiple web pages.
<h3>PRIVACY POLICY</h3>
As per the arrangement of the WIMPLE Web Form Plug-in, the site Admin needs to specify the following data.
<ol>
<li>
Email settings for sending the auto-generated email with the form data from specified sender email id to recipient email id. There are three supported options, for each of which the Admin needs to provide the following information.
<ul>
<li>AWS-SES: Admin needs to provide:
<ul>
<li>AWS Endpoint</li>
<li>AWS account ‘Access Key’</li>
<li>AWS account ‘Secret Access Key’</li>
</ul>
</li>
<li>SMTP server other than AWS-SES: Admin needs to provide:
<ul>
<li>SMTP Server Address</li>
<li>SMTP Server Port</li>
<li>Username</li>
<li>Password</li>
</ul>
</li>
<li>SendGrid API: Admin needs to provide:
<ul>
<li>SendGrid API Key</li>
</ul>
</li>
</ul>
</li>
<li>
Google reCAPTCHA setup to deter robot systems trying to make automated submissions. The Admin needs to provide the following information.
<ul>
<li>Google Site Key</li>
<li>Google Secret Key</li>
</ul>
</li>
</ol>
NOTE: These are put in the code (wp-config.php) and stored on the server, where the plug-in is installed. These are used only to capture data from valid submissions and send emails with the captured form data. SARANGSoft does NOT get / have any access to these information.
The auto-generated emails with the form data from WIMPLE Web Form Plug-in via AWS SES (Simple Email Service) are sent using Signature version 4 for better security and deliverability.
<h3>FREQUENTLY ASKED QUESTIONS (FAQ)</h3>
<ol>
<li>
How to Display the form to the user (in frontend)? 
a) Copy the ‘Shortcode’ for the form from plug-in’s admin backend. 
b) Use WordPress function ‘do_shortcode()’ with the above Shortcode in the PHP file for the required web page.
</li>
<li>
Can we use the same form in more than one page in user end (frontend)? 
Yes, you can use the same form (‘Shortcode’) in multiple web pages.
</li>
<li>
What theme is used by the plug-in? 
There are five (5) built-in themes (color-oriented) with this plug-in. Select any one of those as per your needs, and then customize the CSS for selected theme as you see fit to suit your web site / page.
</li>
</ol>

WIMPLE Contact Form

A flexible Web Form plug-in for WordPress to create Contact or any kind of forms for web sites and apps.

Ajax Message vs WIMPLE Contact Form