Contact Form not sending

Question

I'm using the Pixel & Tonic Contact Form plugin. I have created a template and I'm using the example code from the README file.

No email is being sent. Upon submit it redirects to the form page. I have successfully sent myself an email test using Php Mail.

Do I need a template at: <input type="hidden" name="action" value="contactForm/sendMessage">

This is my code:

{% macro errorList(errors) %}
        {% if errors %}
            <ul class="errors">
                {% for error in errors %}
                    <li>{{ error }}</li>
                {% endfor %}
            </ul>
        {% endif %}
    {% endmacro %}

    {% from _self import errorList %}

    <form method="post" action="" accept-charset="UTF-8">
        {{ getCsrfInput() }}
        <input type="hidden" name="action" value="contactForm/sendMessage">
        <input type="hidden" name="redirect" value="/thank-you-for-contacting-us">

        <h3><label for="fromName" style="display:block">Your Name</label></h3>
        <input id="fromName" type="text" name="fromName" value="{% if message is defined %}{{ message.fromName }}{% endif %}">
        {{ message is defined and message ? errorList(message.getErrors('fromName')) }}

        <h3><label for="fromEmail" style="display:block">Your Email</label></h3>
        <input id="fromEmail" type="text" name="fromEmail" value="{% if message is defined %}{{ message.fromEmail }}{% endif %}">
        {{ message is defined and message ? errorList(message.getErrors('fromEmail')) }}

        <h3><label for="subject" style="display:block">Subject</label></h3>
        <input id="subject" type="text" name="subject" value="{% if message is defined %}{{ message.subject }}{% endif %}">
        {{ message is defined and message ? errorList(message.getErrors('subject')) }}

        <h3><label for="message" style="display:block">Message</label></h3>
        <textarea rows="10" cols="40" id="message" name="message">{% if message is defined %}{{ message.message }}{% endif %}</textarea>
        {{ message is defined and message ? errorList(message.getErrors('message')) }}

        <input id="kneesbees" class="kneesbees" name="kneesbees" type="text">

<input type="submit" value="Send">
    </form>

Answer 1

I figured out what was happening. There was a conflict with a previously installed plugin, Sprout Invisible Captcha.

Answer 2

phpmail is notoriously unreliable at delivering emails. It might work fine for you locally when sending a test email to yourself, but getting an email reliably delivered on the "real" internet is much more difficult.

Most likely you were just running into that unreliability and swapping to a transactional email provider like Mandrill solved the issue.