Bug #81615 [NEW]: mail function does not send SMTUTF8 flag when sending internationalized emails

From: Date: Fri, 12 Nov 2021 11:00:54 +0000
Subject: Bug #81615 [NEW]: mail function does not send SMTUTF8 flag when sending internationalized emails
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-237714@lists.php.net to get a copy of this message 
From:             gblanchet at cofomo dot com
Operating system: Windows
PHP version:      8.0.12
Package:          Mail related
Bug Type:         Bug
Bug description:mail function does not send SMTUTF8 flag when sending internationalized emails

Description:
------------
WHAT I DID:

I try to send an email with non-ASCII characters in it (RFC6530 and the
following, see https://en.wikipedia.org/wiki/International_email).

WHAT I WANTED TO HAPPEN:

I wanted to see the support of the EAI protocol, that is, I wanted to
see the domain part converted to an A-LABEL and to see the mail function
sends the SMTPUTF8 flag.

WHAT ACTUALLY HAPPENED:

The mail is sent as is without transferring the SMTUTF8 flag.

Test script:
---------------
<?php

mail("email-épreuve@épreuve-acceptation-universelle.org", "TEST FROM
PHP WINDOWS...", "body");


-- 
Edit bug report at https://bugs.php.net/bug.php?id=81615&edit=1
-- 
Fix committed:                    https://bugs.php.net/fix.php?id=81615&r=fixed
Fixed in release:                 https://bugs.php.net/fix.php?id=81615&r=alreadyfixed
Need backtrace:                   https://bugs.php.net/fix.php?id=81615&r=needtrace
Need Reproduce Script:            https://bugs.php.net/fix.php?id=81615&r=needscript
Try newer version:                https://bugs.php.net/fix.php?id=81615&r=oldversion
Not developer issue:              https://bugs.php.net/fix.php?id=81615&r=support
Expected behavior:                https://bugs.php.net/fix.php?id=81615&r=notwrong
Not enough info:                  https://bugs.php.net/fix.php?id=81615&r=notenoughinfo
Submitted twice:                  https://bugs.php.net/fix.php?id=81615&r=submittedtwice
register_globals:                 https://bugs.php.net/fix.php?id=81615&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=81615&r=phptooold
Daylight Savings:                 https://bugs.php.net/fix.php?id=81615&r=dst
IIS Stability:                    https://bugs.php.net/fix.php?id=81615&r=isapi
Install GNU Sed:                  https://bugs.php.net/fix.php?id=81615&r=gnused
Floating point limitations:       https://bugs.php.net/fix.php?id=81615&r=float
No Zend Extensions:               https://bugs.php.net/fix.php?id=81615&r=nozend
MySQL Configuration Error:        https://bugs.php.net/fix.php?id=81615&r=mysqlcfg

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