From 13c0c1909fab05acb0be0bfb4bb38f2eef0f00f3 Mon Sep 17 00:00:00 2001
From: Ibrahim BinAlshikh <usernane@users.noreply.github.com>
Date: Mon, 15 Jan 2024 16:00:48 +0300
Subject: [PATCH] Update Email.php

---
 webfiori/email/Email.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/webfiori/email/Email.php b/webfiori/email/Email.php
index 386bbd7..474b021 100644
--- a/webfiori/email/Email.php
+++ b/webfiori/email/Email.php
@@ -827,6 +827,8 @@ private function setupBeoreTesting() {
      * @return string The string after its control characters trimmed.
      */
     private function trimControlChars(string $str) : string {
-        return trim($str, "\x00..\x20");
+        $trimmed = trim($str, "\x00..\x20");
+        //Removes any invalid line feed.
+        return preg_replace("/(\s*[\r\n]+\s*|\s+)/", ' ', $trimmed);
     }
 }