From 83e782330dc6ca77c4069b63102110f21fb96321 Mon Sep 17 00:00:00 2001
From: Hadi Nategh <hnategh@gmail.com>
Date: Wed, 30 Jun 2021 16:18:45 +0200
Subject: [PATCH] Try to take only quoted_printable to decode and avoid
 decoding url params as quoted

---
 api/src/Mail.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/api/src/Mail.php b/api/src/Mail.php
index cc71dbb6e1..26760e663a 100644
--- a/api/src/Mail.php
+++ b/api/src/Mail.php
@@ -6608,7 +6608,7 @@ class Mail
 
 	static function detect_qp($string)
 	{
-		return preg_match('/(=[0-9][A-F])|(=[A-F][0-9])|(=[A-F][A-F])|(=[0-9][0-9])/', $string);
+		return preg_match('/(=[0-9][A-F])|(=[A-F][0-9])|(=[A-F][A-F])|(=[0-9][0-9])[\s|=]/', $string);
 	}
 
 	/**