From 2d9a18f658a0b561381851eaf94ad9d0f9f8c73a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Oliver=20Kuldm=C3=A4e?= <oliver.kuldmae@gmail.com>
Date: Fri, 22 Nov 2019 19:33:50 +0200
Subject: [PATCH] Parse multipart/related parts recursively (#808)

This is to ensure that tracking pixels are correctly added to all nested parts of the email.
---
 lib/postal/message_parser.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/postal/message_parser.rb b/lib/postal/message_parser.rb
index 5f668c8..3453914 100644
--- a/lib/postal/message_parser.rb
+++ b/lib/postal/message_parser.rb
@@ -71,7 +71,7 @@ module Postal
           part.body = parse(part.body.decoded.dup, :text)
           part.content_transfer_encoding = nil
           part.charset = 'UTF-8'
-        elsif part.content_type =~ /multipart\/alternative/
+        elsif part.content_type =~ /multipart\/(alternative|related)/
           unless part.parts.empty?
             parse_parts(part.parts)
           end