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-rw-r--r--app/Core/Mail/Transport/Mail.php5
1 files changed, 5 insertions, 0 deletions
diff --git a/app/Core/Mail/Transport/Mail.php b/app/Core/Mail/Transport/Mail.php
index 0d819f77..0fc278d1 100644
--- a/app/Core/Mail/Transport/Mail.php
+++ b/app/Core/Mail/Transport/Mail.php
@@ -36,6 +36,11 @@ class Mail extends Base implements ClientInterface
->setFrom($this->helper->mail->getMailSenderAddress(), $authorName)
->setTo(array($recipientEmail => $recipientName));
+ $headers = $message->getHeaders();
+
+ // See https://tools.ietf.org/html/rfc3834#section-5
+ $headers->addTextHeader('Auto-Submitted', 'auto-generated');
+
if (! empty($authorEmail)) {
$message->setReplyTo($authorEmail);
}