<form method = “post” action = “contact.php” name = “contactform” id = “contactform”>
<fieldset>
<legend>Enter your details below to get in touch:</legend>
<label for="name"><span class="required">*</span> Your Name</label>
<input name="name" type="text" id="name" size="30" value="" />
<br />
<label for="email"><span class="required">*</span> Email</label>
<input name="email" type="text" id="email" size="30" value="" />
<br />
<label for="phone"><span class="required">*</span> Phone</label>
<input name="phone" type="text" id="phone" size="30" value="" />
<br />
<label for="subject">Subject</label>
<select name="subject" id="subject" style="width: 302px;">
<option value="Feedback">Feedback</option>
<option value="Question">Question</option>
<option value="Contribute">Contribute</option>
</select>
<br />
<label for="comments"><span class="required">*</span> Your comments</label>
<textarea name="comments" cols="40" rows="3" id="comments"></textarea>
<p><span class="required">*</span> Are you human?</p>
<label for="verify"> 3 + 7 =</label>
<input name="verify" type="text" id="verify" size="4" value="" style="width: 30px;" /><br /><br />
<input type="submit" class="submit" id="submit" value="Submit" />
</fieldset>
</form>
Mais aqui: https://sitebeginner.com/code/phpemailform/