In what scenarios would setting the encoding in PHPMailer to base64 be beneficial for handling Umlaut characters in email headers?

When sending emails with Umlaut characters in the headers, such as ü or ä, it is important to set the encoding in PHPMailer to base64. This ensures that the characters are properly encoded and displayed correctly in the email headers. By using base64 encoding, special characters like Umlauts are safely transmitted and interpreted by email clients. 

// Create a new PHPMailer instance
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

$mail = new PHPMailer(true);

// Set the encoding to base64 for handling Umlaut characters
$mail->CharSet = 'UTF-8';
$mail->Encoding = 'base64';

// Rest of the PHPMailer configuration and email sending code

Keywords

PHPMailer encoding base64 Umlaut characters email headers

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