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. index of idm patch
View full certificate chains including protocol version, cipher suite, issuer details, validity dates, and SHA-256 fingerprints. : A "patch" is a small program designed
24-code error database with actionable troubleshooting hints. Port connectivity testing detects ISP blocking, firewall issues, and DNS failures. These are server folders that haven't been hidden
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.
: A "patch" is a small program designed to modify an existing software's code. In the context of IDM, patches are typically used to bypass registration screens or "crack" the trial version.
An "index of" search is a specific Google dorking technique used to find . These are server folders that haven't been hidden by a website’s homepage, allowing anyone to see a raw list of files like a file explorer.
: IDM is highly valued for its ability to split downloads into multiple streams to increase speed and its reliable resume feature. The Dangers of Unofficial Patches
The "Index of IDM Patch": What You Need to Know Searching for "index of IDM patch" often leads users into the world of open directories and unofficial software modifications. While the goal is usually to unlock the full features of without a license, this specific search query carries significant risks and ethical considerations. What is an "Index of" Search?
Downloading patches from unverified open directories is one of the most common ways to compromise a computer's security.
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
: A "patch" is a small program designed to modify an existing software's code. In the context of IDM, patches are typically used to bypass registration screens or "crack" the trial version.
An "index of" search is a specific Google dorking technique used to find . These are server folders that haven't been hidden by a website’s homepage, allowing anyone to see a raw list of files like a file explorer.
: IDM is highly valued for its ability to split downloads into multiple streams to increase speed and its reliable resume feature. The Dangers of Unofficial Patches
The "Index of IDM Patch": What You Need to Know Searching for "index of IDM patch" often leads users into the world of open directories and unofficial software modifications. While the goal is usually to unlock the full features of without a license, this specific search query carries significant risks and ethical considerations. What is an "Index of" Search?
Downloading patches from unverified open directories is one of the most common ways to compromise a computer's security.
Verify SMTP servers, test API providers, inspect TLS certificates, and diagnose delivery issues. No cost, no limits.