How to Fix PHPmailer HTML Content Rendering Issue?

PHPmailer Unable to Render HTML Content

When sending emails using PHPmailer, users have encountered an issue where the HTML code is displayed as raw text upon delivery. Despite utilizing the IsHTML() method, the desired HTML content remains inaccessible.

The Underlying Problem

The reason behind this behavior lies in the order of method invocations. Unlike its predecessor, PHPMailer 6 requires the IsHTML() method to be invoked after setting the Body property of the instance.

Resolution

To resolve this issue, implement the following procedure:

1. Set the Body property of the PHPmailer instance, containing the HTML content to be transmitted.


2. Subsequently, call the IsHTML() method with a true parameter, indicating that the email content should be treated as HTML.

Example Code:

<code class="php">$mail->Subject = $Subject;
$mail->Body    = $Body;
$mail->IsHTML(true); // Invoked after $mail->Body has been set.</code>

By adhering to this corrected order of operations, PHPmailer will effectively process and render the HTML content of emails, resolving the issue where raw HTML code was previously displayed.

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