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. ADOBE CREATIVE SUITE 5.5 MASTER COLLECTION Keygen
View full certificate chains including protocol version, cipher suite, issuer details, validity dates, and SHA-256 fingerprints. Adobe has largely moved away from the Creative
24-code error database with actionable troubleshooting hints. Port connectivity testing detects ISP blocking, firewall issues, and DNS failures. The experience had taught him a valuable lesson
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.
Adobe has largely moved away from the Creative Suite model in favor of the Creative Cloud, which offers a similar set of applications on a subscription basis. The Creative Cloud model provides continuous updates, eliminating the need for version upgrades.
From then on, Alex made sure to always use legitimate software, encouraging his colleagues to do the same. The experience had taught him a valuable lesson about the importance of integrity in his work.
This article is for educational purposes only. The use of keygens to generate license keys is generally considered to be a violation of software terms of use and may be illegal in some jurisdictions. We do not condone or promote the use of keygens or other methods of software piracy.
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
Adobe has largely moved away from the Creative Suite model in favor of the Creative Cloud, which offers a similar set of applications on a subscription basis. The Creative Cloud model provides continuous updates, eliminating the need for version upgrades.
From then on, Alex made sure to always use legitimate software, encouraging his colleagues to do the same. The experience had taught him a valuable lesson about the importance of integrity in his work.
This article is for educational purposes only. The use of keygens to generate license keys is generally considered to be a violation of software terms of use and may be illegal in some jurisdictions. We do not condone or promote the use of keygens or other methods of software piracy.
Verify SMTP servers, test API providers, inspect TLS certificates, and diagnose delivery issues. No cost, no limits.