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
Many fans champion the Open Matte 4K as a revolutionary way to experience the film. A Letterboxd user raved about a "fan edit combining the 2.39:1 bluray with select scenes from the 16:9 'open matte' version of the film," calling it a "Cinematic masterpiece." One reviewer described the Open Matte presentation as "gorgeous... shows off so much more detail that is well worth it as it fills up the entire IMAX screen". The immersive quality of seeing every frame fill their entire TV is a huge draw for many.
If you want the most faithful 4K viewing experience
When Denis Villeneuve’s Blade Runner 2049 hit theaters in 2017, it was a sensory landmark. Shot by the legendary Roger Deakins, every frame looked like a brutalist painting—drenched in smoke, neon, and aching emptiness. We saw it in the standard widescreen ratio of 2.39:1. But for the past few years, a quiet cult has formed around a different version of the film: the .
Unlike the standard theatrical release (2.39:1), which uses black bars at the top and bottom, the Open Matte version reveals approximately 26% more of the image vertically. IMAX vs. Open Matte: blade runner 2049 open matte 4k
The towering, gloomy, vertical buildings of Los Angeles feel more claustrophobic and immense.
Brief summary
How to identify an open‑matte 4K version Many fans champion the Open Matte 4K as
Most modern movies are filmed using digital sensors or film stocks that capture a taller image than what you see in the cinema.
The search for the "Holy Grail" of modern sci-fi visuals often leads to the version. While not an official retail release, this format has become a focal point for cinephiles who want to see every inch of Roger Deakins' Oscar-winning cinematography without the standard black letterboxing. What is "Open Matte"?
The release of Blade Runner 2049 Open Matte 4K represents a new benchmark for cinematic storytelling. This visually stunning, thought-provoking masterpiece redefines the sci-fi genre, inviting viewers to immerse themselves in a vast, meticulously crafted world. With its expanded aspect ratio, 4K resolution, and HDR10 mastering, Blade Runner 2049 Open Matte 4K offers a once-in-a-lifetime experience for fans of cinema. The immersive quality of seeing every frame fill
The Ultimate Visual Experience: Exploring Blade Runner 2049 in Open Matte 4K
The cinematic presentation of Blade Runner 2049 remains a frequent topic of debate among home theater enthusiasts and videophiles. While the standard consumer release presents the film in a widescreen format, a rare "open matte" version exists. This version alters the framing of Denis Villeneuve’s sci-fi masterpiece.
It is crucial to note that Deakins explicitly composed the film for the 2.39:1 widescreen format. The additional imagery at the top and bottom of the frame in the open matte version was intended to be discarded during the final framing process. The Origins of the Open Matte Version
Occasionally, streaming services or high-definition digital retailers may offer versions closer to the IMAX aspect ratio.
The wind howled through the window, blowing papers off the desk. The 4K clarity picked up the dust motes dancing in the light of the neon sign outside. It bathed her face in pink and blue.
Verify SMTP servers, test API providers, inspect TLS certificates, and diagnose delivery issues. No cost, no limits.