WhatEver Mail

A local SMTP email capture tool built for developers. Ever wished you could test your app's email flow without signing up for a service, worrying about rate limits, or sending real emails? WhatEver Mail runs on your machine — capturing every email locally, the moment it's sent.

Installation

Download the build for your platform and run it. No installer configuration required — WhatEver Mail is ever-ready out of the box.

macOS note: On first launch, right-click → Open if Gatekeeper blocks it (unsigned build).
Linux note: chmod +x WhatEverMail.AppImage then run it.

Quick Start

From download to catching your first email in under two minutes. Three steps — that's everything you need.

# Send a test email in one line
curl --url 'smtp://localhost:1025' \
  --mail-from 'app@yourproject.dev' \
  --mail-rcpt 'user@example.com' \
  -T - <<EOF
From: app@yourproject.dev
To: user@example.com
Subject: Welcome! Ever glad you joined.
Content-Type: text/plain

Hello from WhatEver Mail!
EOF

const transporter = nodemailer.createTransport({
  host:       'localhost',
  port:       1025,
  secure:     false,
  ignoreTLS: true,
});

// Send as normal — WhatEver Mail catches it
await transporter.sendMail({
  from:    'app@yourproject.dev',
  to:      'user@example.com',
  subject: 'Welcome! Ever glad you joined.',
  html:    welcomeHtml,
});

Features

FAQ