HTML Tutorial: Send Emails from an HTML Form

HTML forms cannot independently send email because email delivery requires server-side logic, secure credentials, SMTP or API access, and controls such as rate limiting; using a mailto link merely opens a visitor’s email client and has usability and formatting limitations. The material explains how to build a contact form that submits data through POST to a PHP backend, with both browser-side validation through HTML5 attributes or JavaScript and server-side validation to check required fields, email formats, and sanitized input. Although PHP’s native mail() function can send messages through a locally configured mail server, it recommends PHPMailer as a more secure and reliable alternative that uses authenticated SMTP services such as Mailtrap. It also describes adding Google reCAPTCHA to reduce automated submissions, configuring SMTP credentials and email headers, displaying success or error messages, and using PHPMailer’s attachment functionality for uploaded files.

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