Fix off-by-one error in Message ID header count check in Util\Emailer
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@ -141,7 +141,7 @@ class Emailer
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$countMessageId += count($value);
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}
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}
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if ($countMessageId > 0) {
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if ($countMessageId > 1) {
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$this->logger->warning('More than one Message-ID found - RFC violation', ['email' => $email]);
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}
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