Why doesn't SMTP send Russian characters to mail?

Question

PHP

There is a function of sending a letter with Russian text
If you send mail to Yandex / Gmail - everything is sent as it should.
If you send it to Mail.ru, then the Russian text simply will not reach

Gmail:

spoiler

Mail:

spoiler

How to ship:

spoiler

* Encoding set to UTF-8 ($config['smtp_charset'])

Answer 1

Three simple steps to solve this problem:
1. Look at the calendar and clarify what century it is in the yard.
2. Carefully select this code and press the Del button
3. Download phpmailer
4. Forget all these handicraft picks like a bad dream.
As a result, the code should look something like this:

require 'PHPMailerAutoload.php';
$mail = new PHPMailer;
$mail->setFrom('[email protected]', 'First Last');
$mail->addAddress('[email protected]', 'John Doe');
$mail->Subject = 'PHPMailer file sender';
$mail->msgHTML("My message body");
$mail->send();

it should be understood that sending mail is not just copying into your script some specific combinations of characters that accidentally worked in the last century for the author of some antediluvian article. This is a much more complex process, which includes many nuances. And therefore, sending mail should not be manually sculpted on the go from manure and sticks, but entrusted to a proven and debugged solution.