From f7593653eabfd4242537c34db0587541c005a9a6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20=C3=96sterreicher?= <oesi@technikum-wien.at>
Date: Wed, 21 Feb 2018 07:16:03 +0100
Subject: [PATCH] Maillib Added support for overriding the Mail FROM

---
 application/libraries/MailLib.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/application/libraries/MailLib.php b/application/libraries/MailLib.php
index 8e21815f0..e7d3435e0 100644
--- a/application/libraries/MailLib.php
+++ b/application/libraries/MailLib.php
@@ -58,6 +58,14 @@ class MailLib
 				$alias = $this->alias_from_system;
 			}
 		}
+		if (defined('MAIL_FROM') && MAIL_FROM != '')
+		{
+			$from = MAIL_FROM;
+			if (is_null($alias) || $alias == '')
+			{
+				$alias = $this->alias_from_system;
+			}
+		}
 
 		$this->ci->email->from($from, $alias);