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. mixwave luke holland drums kontakt free dow new
View full certificate chains including protocol version, cipher suite, issuer details, validity dates, and SHA-256 fingerprints. If you are looking for free drum sounds
24-code error database with actionable troubleshooting hints. Port connectivity testing detects ISP blocking, firewall issues, and DNS failures. or hijack your DAW.
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.
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: Compatible with both macOS (10.11 - 15) and Windows (10 or later).
I understand the temptation – software is expensive, and we all want to save money. But the risks (malware, wasted time, legal exposure) far outweigh the benefits. Instead:
Cracked Kontakt libraries are a favorite vector for hackers. Files labeled “Mixwave Luke Holland Drums free download” often contain executable viruses that can encrypt your data, steal passwords, or hijack your DAW.
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
If you are looking for free drum sounds without using unauthorized software, you might consider: Luke Holland Sample Packs:
Occasionally, smaller "one-shot" or beat packs are available on subscription platforms like Kontakt Factory Selection: Native Instruments offers a free Komplete Start
: Compatible with both macOS (10.11 - 15) and Windows (10 or later).
I understand the temptation – software is expensive, and we all want to save money. But the risks (malware, wasted time, legal exposure) far outweigh the benefits. Instead:
Cracked Kontakt libraries are a favorite vector for hackers. Files labeled “Mixwave Luke Holland Drums free download” often contain executable viruses that can encrypt your data, steal passwords, or hijack your DAW.
Verify SMTP servers, test API providers, inspect TLS certificates, and diagnose delivery issues. No cost, no limits.