From 5cd828c7d7822f295080df7473d5c9e8fef38e16 Mon Sep 17 00:00:00 2001
From: Sepehr Ramezani <sepehr@Mac-mini-de-Sepehr.local>
Date: Tue, 21 Apr 2026 20:22:25 +0200
Subject: [PATCH] fix: Resend rejects noreply@localhost as from address

When NEXTAUTH_URL=http://localhost:3000, the hostname resolves to
'localhost' which Resend rejects. Fall back to onboarding@resend.dev
when hostname is localhost.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 memento-note/lib/mail.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/memento-note/lib/mail.ts b/memento-note/lib/mail.ts
index 409180f..3ab6222 100644
--- a/memento-note/lib/mail.ts
+++ b/memento-note/lib/mail.ts
@@ -61,8 +61,9 @@ async function sendViaResend(apiKey: string, { to, subject, html, attachments }:
     const { Resend } = await import('resend');
     const resend = new Resend(apiKey);
 
-    const from = process.env.NEXTAUTH_URL
-      ? `Memento <noreply@${new URL(process.env.NEXTAUTH_URL).hostname}>`
+    const hostname = process.env.NEXTAUTH_URL ? new URL(process.env.NEXTAUTH_URL).hostname : '';
+    const from = hostname && hostname !== 'localhost'
+      ? `Memento <noreply@${hostname}>`
       : 'Memento <onboarding@resend.dev>';
 
     // Resend supports attachments with inline content