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
Released in 1982, Poltergeist is a seminal horror film directed by Tobe Hooper and produced by Steven Spielberg. The movie has become a staple of the genre, and its influence can still be seen in many modern horror films. For Vietnamese audiences, the film is now available with Vietnamese subtitles, or "Poltergeist 1982 Vietsub," making it more accessible than ever. In this blog post, we'll take a look at why Poltergeist remains a timeless horror classic that continues to terrify audiences to this day.
Poltergeist was a game-changer in the horror genre when it was released in 1982. The film's use of special effects, combined with its well-crafted storyline and memorable characters, made it an instant classic. The film's portrayal of a haunted house, complete with moving furniture, possessed electronics, and creepy spirits, raised the bar for horror films. Poltergeist also launched the careers of several actors, including Craig T. Nelson, JoBeth Williams, and Zelda Rubinstein. Poltergeist 1982 Vietsub
Poltergeist tells the story of the Freeling family, who move into a new home in California. Soon, they begin to experience strange and terrifying occurrences, which they soon discover are caused by malevolent spirits. The spirits, who are led by a vengeful entity known as "Bessie," begin to haunt the family, causing physical harm and psychological distress. The family turns to paranormal investigators for help, but they soon realize that the spirits are more powerful and malevolent than they ever could have imagined. Released in 1982, Poltergeist is a seminal horror
Poltergeist's influence can still be seen in many modern horror films. The film's use of practical effects, combined with its focus on character development and storytelling, has been emulated by many filmmakers. The film's portrayal of a haunted house has also become a staple of the genre, with many films and TV shows paying homage to the classic. Poltergeist has also become a cultural touchstone, with references to the film appearing in everything from music to comedy sketches. In this blog post, we'll take a look
Poltergeist 1982 Vietsub is a horror classic that continues to terrify audiences to this day. With its well-crafted storyline, memorable characters, and groundbreaking special effects, it's no wonder that Poltergeist remains a staple of the horror genre. If you haven't seen Poltergeist before, then do yourself a favor and watch it with Vietnamese subtitles. And if you have seen it before, then it's time to revisit this timeless horror classic.
Verify SMTP servers, test API providers, inspect TLS certificates, and diagnose delivery issues. No cost, no limits.