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comment_form: email notifications on new comments now unreadable

viktorzen Member
in General support

Hi, found another issue after upgrading from 1.5.x to 1.6.8:

The email notifications on new comments are now unreadable, base64 encoded blob, instead of plain ascii text like they used to, whenever someone posts a new comment.

Comments

  • acrylian Administrator, Developer
    edited December 2025

    Of course we don't recommend doing large version jumps from 1.5.x (especially if not the last 1.5.x) to 1.6.8 for a reason. You jumped over three years of updates on one go.

    There have been lots of changes and one includes a database encoding change to support utf8mb4 encoding (the actual real utf8 MySQL didn't formerly). That may affect here or some wrong settings. Or your server does not support utf8 or doesn't have the multibyte or iconv extension. Setup will tell.

  • viktorzen Member

    Found the bug, the email headers are not properly separated in the send_mail member function of class-utf8, email headers requires "\r\n" not just "\n":

    lib/class-utf8.php

    class-utf8::send_mail
    line 713:

        if ($additional_headers != '')
        $additional_headers .= "\r\n";

    $additional_headers .=
                    "Mime-Version: 1.0\r\n" .
                    "Content-Type: text/plain; charset=UTF-8\r\n" .
                    "Content-Transfer-Encoding: base64";
  • acrylian Administrator, Developer

    Weird, that for sure has not been change for ages. Very old library we probably will retire in the near future (we should be using the mb_mail() function if available instead of this). Anyway, please send a pull request with the change via GitHub.

  • acrylian Administrator, Developer

    Never mind, I will add the change myself later, probably next year.

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