From 3543d7c33d4d93def162d5e390e9c0ae09d7fd0d Mon Sep 17 00:00:00 2001
From: Trankten <86560527+trankten@users.noreply.github.com>
Date: Wed, 28 Dec 2022 11:24:48 +0100
Subject: [PATCH] Update mail.php

Adding compatibility with Google Workspaces SMTP Relay.
More info can be found here: https://support.google.com/a/answer/2956491
---
 config/mail.php | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/config/mail.php b/config/mail.php
index 0951a33fd..2e88c824d 100644
--- a/config/mail.php
+++ b/config/mail.php
@@ -85,8 +85,21 @@ return [
     */
 
     'username' => env('MAIL_USERNAME'),
-
     'password' => env('MAIL_PASSWORD'),
+    
+    
+    /*
+    |--------------------------------------------------------------------------
+    | SMTP EHLO Domain
+    |--------------------------------------------------------------------------
+    |
+    | Some SMTP servers require to present a known domain in order to 
+    | allow sending through its relay. (ie: Google Workspace)
+    | This will use the MAIL_SMTP_EHLO env variable to avoid the 421 error
+    | if not present by authenticating the sender domain instead the host.
+    |
+    */
+    'local_domain' => ENV('MAIL_SMTP_EHLO'),
 
     /*
     |--------------------------------------------------------------------------