From 6fd392bc15b79dba8d381d8bddead71b72db4655 Mon Sep 17 00:00:00 2001
From: Bernard Spil <Sp1l@users.noreply.github.com>
Date: Wed, 13 May 2020 23:30:47 +0200
Subject: [PATCH] Fix SMTP for servers that don't need auth (#783)

Currently this fails against servers that don't need or support AUTH but rely on other means to allow relaying email.
---
 server/libs/MailSender.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/server/libs/MailSender.php b/server/libs/MailSender.php
index 67cedd7b..5802ffb9 100755
--- a/server/libs/MailSender.php
+++ b/server/libs/MailSender.php
@@ -66,10 +66,12 @@ class MailSender {
             $this->mailerInstance->CharSet = 'UTF-8';
 
             $this->mailerInstance->isSMTP();
-            $this->mailerInstance->SMTPAuth = true;
             $this->mailerInstance->Host = $this->mailOptions['smtp-host'];
-            $this->mailerInstance->Username = $this->mailOptions['smtp-user'];
-            $this->mailerInstance->Password = $this->mailOptions['smtp-pass'];
+            if($this->mailerInstance->Username !== '') {
+                $this->mailerInstance->SMTPAuth = true;
+                $this->mailerInstance->Username = $this->mailOptions['smtp-user'];
+                $this->mailerInstance->Password = $this->mailOptions['smtp-pass'];
+            }
             $this->mailerInstance->Timeout = 10;
             $this->mailerInstance->SMTPOptions = [
                 'ssl' => [