6.2.0+ corrupts HTML body about phpmailer HOT 5 CLOSED

The only difference I can see is line breaks (/n in 6.1.8 vs. /r/n in 6.2.0)

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So. umm, why dropped support for legacy Linux senders?
Should have at least mentioned it in the release notes

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Fixed by adding

            $mailer->isSendmail();

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So. umm, why dropped support for legacy Linux senders? Should have at least mentioned it in the release notes

That didn't happen; nothing was dropped, and this change was explicitly mentioned in the release notes, to quote:

Resolve PHP 8 line break issues due to a very old PHP bug being fixed

PHP 8.0 fixed a bug relating to the use of line breaks in the mail transport, which meant that PHPMailer's workaround code was broken, and it caused double line breaks in PHP 8 versions running on Linux, which was fixed in that version. Anything running PHP older than PHP 8.0 (i.e. legacy code) would be unaffected, as you can see in the code.

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You are, in fact, wrong
We have been running PHPMailer v5 with PHP 8.2 for one year, and it sent the same HTML in emails, as it had with PHP7 before
But the change from v5 to v6 immediately broke the HTML

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