From aa09135cc2223139d1062a74b2d2ccdcb4b0949b Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Sun, 8 Dec 2024 12:04:22 -0500
Subject: [PATCH] Ensure swoosh mail compatibility with DKIM relay

---
 lib/philomena/users/user_notifier.ex | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/philomena/users/user_notifier.ex b/lib/philomena/users/user_notifier.ex
index 2cd85d86..8ee56871 100644
--- a/lib/philomena/users/user_notifier.ex
+++ b/lib/philomena/users/user_notifier.ex
@@ -3,12 +3,18 @@ defmodule Philomena.Users.UserNotifier do
   alias Philomena.Mailer
 
   defp deliver(to, subject, body) do
+    id =
+      :crypto.strong_rand_bytes(16)
+      |> Base.encode16()
+      |> String.downcase()
+
     Email.new(
       to: to,
-      from: mailer_address(),
+      from: {"noreply", mailer_address()},
       subject: subject,
       text_body: body
     )
+    |> Email.header("Message-ID", id)
     |> Mailer.deliver_later()
   end