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. napoleon total war 2560x1440
View full certificate chains including protocol version, cipher suite, issuer details, validity dates, and SHA-256 fingerprints. If the option does not appear, or if
24-code error database with actionable troubleshooting hints. Port connectivity testing detects ISP blocking, firewall issues, and DNS failures. Navigate to: The Creative Assembly > Napoleon > scripts
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.
If the option does not appear, or if the game crashes upon launch, you can force the resolution via the game's configuration files. Press Windows Key + R to open the Run dialog box. Type %appdata% and hit Enter. Navigate to: The Creative Assembly > Napoleon > scripts . Open the preferences.script.txt file using Notepad. Find the following two lines and update them: x_res 2560; # x_res , Size of display width # y_res 1440; # y_res , Size of display height # Save the file and restart the game. Fixing the 1440p UI Scaling Issue
Discerning the micro-terrain—such as small ridges or dips that might block your cannonballs—is much easier with the extra fidelity. You can place your Howitzers with surgical accuracy.
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 the option does not appear, or if the game crashes upon launch, you can force the resolution via the game's configuration files. Press Windows Key + R to open the Run dialog box. Type %appdata% and hit Enter. Navigate to: The Creative Assembly > Napoleon > scripts . Open the preferences.script.txt file using Notepad. Find the following two lines and update them: x_res 2560; # x_res , Size of display width # y_res 1440; # y_res , Size of display height # Save the file and restart the game. Fixing the 1440p UI Scaling Issue
Discerning the micro-terrain—such as small ridges or dips that might block your cannonballs—is much easier with the extra fidelity. You can place your Howitzers with surgical accuracy.
Verify SMTP servers, test API providers, inspect TLS certificates, and diagnose delivery issues. No cost, no limits.