SMTP & Email API Test Utility
A free, native tool for testing SMTP relay servers and email API providers. Built for email administrators, developers, and IT professionals who need to quickly verify email delivery configurations.
Windows, macOS & CLI available now
Clean, intuitive interface designed for professionals. Test SMTP servers, preview HTML emails, and diagnose delivery issues.
Main Interface - SMTP Configuration
Send test emails through any SMTP server or choose from 12 integrated API providers. Inspect TLS certificates, diagnose delivery issues, and securely store credentials.
Save SMTP and API credentials securely with AES-256-GCM encryption. Master password protection keeps your credentials safe between sessions.
View full certificate chains including protocol version, cipher suite, issuer details, validity dates, and SHA-256 fingerprints.
24-code error database with actionable troubleshooting hints. Port connectivity testing detects ISP blocking, firewall issues, and DNS failures.
Compose in plain text or HTML with auto-detection. Live preview with rendered and raw source views. 6 preloaded templates included.
One-click sending via SendGrid, Mailgun, Amazon SES, Postmark, Brevo, and 7 more providers with built-in authentication handling.
No analytics, no tracking, no data collection. Your credentials stay local. App Sandbox enabled for maximum security.
One-click API-based sending with all major email service providers. Authentication handled automatically.
Live HTML Email Preview
6 Pre-loaded Email Templates
No subscriptions, no limitations, no strings attached.
Windows 10/11 (x64)
Version 1.0.7.0
macOS 14.0+ (Universal)
Version 1.08
Python (Cross-platform)
Open Source
Before you download, you must understand the split. There is no single "Shovel Knight" app anymore.
The Android version includes Shovel Knight: Treasure Trove — the complete package containing all major campaigns:
This is the full, unabridged experience, not a stripped-down mobile version.
While no official port exists, the game can be played on Android via unofficial means:
Yes, if:
No, if:
On a phone with a controller, this is arguably the best portable version outside of the Switch — and often cheaper.
It’s a fan-made port of Shovel Knight: Treasure Trove (including Shovel of Hope, Plague of Shadows, Specter of Torment, King of Cards, and Showdown) for Android devices.
If you own a Razer Kishi, Backbone One, Xbox Wireless Controller, or PlayStation DualSense, congratulations. Shovel Knight Android transforms into the definitive version of the game.
The port features native, lag-free controller mapping. When you connect a Bluetooth gamepad, the touch icons vanish, and the game instantly recognizes button layouts. There is no "manual mapping" needed. Rumble (haptic feedback) is supported on controllers that allow it, though Android’s Bluetooth stack sometimes reduces intensity.
Playing with a controller on an OLED phone (like a Samsung Galaxy S24 Ultra or a Pixel 8 Pro) using a clip or telescopic controller is arguably better than playing on a Switch Lite. The resolution is higher, the framerate is rock solid, and load times are significantly faster. Shovel Knight Android Port
Supported controllers tested working:
Unlike the simultaneous multi-platform launch of the Treasure Trove collection on consoles, the Android port was a late bloomer. For years, Yacht Club Games cited technical hurdles and market saturation as reasons for the delay. The primary obstacle was the game’s pixel-perfect precision.
Shovel Knight is not a casual auto-runner. It requires frame-perfect jumps, bouncing off enemy heads (the "Shovel Drop"), and precise platforming over bottomless pits. Translating that to a capacitive touch screen without frustrating the player was a herculean task.
The first official appearance on Android happened in 2020 with Shovel Knight: Shovel of Hope DX—but wait, no. The waters got muddy. The actual, full-fledged port began rolling out in 2022 via a surprising partnership: Netflix.
Yes, the leading streaming service soft-launched the Shovel Knight Pocket Dungeon spin-off first, followed by the main event. In early 2024, Yacht Club Games finally released the definitive Shovel Knight experience natively on the Google Play Store, separate from the Netflix subscription. Today, the Android ecosystem has two distinct ways to play. Before you download, you must understand the split
You need the data.win, options.ini, and audio/music folders. Here’s how:
From Steam (PC):
From GOG – similar location.
From Switch dump (legal only if you own it) – extract the .nsp and find the game files.
Verify SMTP servers, test API providers, inspect TLS certificates, and diagnose delivery issues. No cost, no limits.