From 6f0f7a7f68d776890cbfca985917fb2ba39123b3 Mon Sep 17 00:00:00 2001
From: Marcus Bointon <marcus@synchromedia.co.uk>
Date: Thu, 18 Sep 2025 17:25:26 +0200
Subject: [PATCH] Extract gmail transaction IDs, fixes #3224

---
 changelog.md | 1 +
 src/SMTP.php | 1 +
 2 files changed, 2 insertions(+)

diff --git a/changelog.md b/changelog.md
index ccfb0133..dd585eb9 100644
--- a/changelog.md
+++ b/changelog.md
@@ -9,6 +9,7 @@
 * Fix PHP 8.5 linting issue.
 * Don't use `-t` switch when calling qmail.
 * Checking for interrupted system calls now works in languages other than English.
+* Add support for extracting gmail transaction IDs after sending.
 
 ## Version 6.10.0 (April 24th, 2025)
 * Add support for [RFC 6530 SMTPUTF8](https://www.rfc-editor.org/rfc/rfc6530), permitting use of UTF-8 Unicode characters everywhere, thanks to @arnt and ICANN. See `SMTPUTF8.md` for details.
diff --git a/src/SMTP.php b/src/SMTP.php
index 4181eaea..7c359cf7 100644
--- a/src/SMTP.php
+++ b/src/SMTP.php
@@ -205,6 +205,7 @@ class SMTP
         'Haraka' => '/[\d]{3} Message Queued \((.*)\)/',
         'ZoneMTA' => '/[\d]{3} Message queued as (.*)/',
         'Mailjet' => '/[\d]{3} OK queued as (.*)/',
+        'Gsmtp' => '/[\d]{3} 2\.0\.0 OK (.*) - gsmtp/',
     ];
 
     /**