8000 [Mailer] Add a comment to avoid more wrong PRs on this piece of code · symfony/symfony@444e616 · GitHub
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[Mailer] Add a comment to avoid more wrong PRs on this piece of code
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‎src/Symfony/Component/Mailer/Transport/Smtp/EsmtpTransport.php

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@@ -106,6 +106,9 @@ protected function doHeloCommand(): void
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/** @var SocketStream $stream */
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$stream = $this->getStream();
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// WARNING: !$stream->isTLS() is right, 100% sure :)
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// if you think that the ! should be removed, read the code again
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// if doing so "fixes" your issue then it probably means your SMTP server behaves incorrectly or is wrongly configured
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if (!$stream->isTLS() && \defined('OPENSSL_VERSION_NUMBER') && \array_key_exists('STARTTLS', $capabilities)) {
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$this->executeCommand("STARTTLS\r\n", [220]);
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