SMTP Server Tester
SMTP Server Tester Interface
Enter your content below for analysis. Results will appear instantly.
Key Features
Connection testing
Handshake analysis
TLS verification
Authentication test
Detailed diagnostics
Use Cases
Server troubleshooting
Connectivity verification
TLS testing
Configuration validation
Tool Info
Type
tester
Free
Yes
Signup
Not Required
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About SMTP Server Tester
The SMTP Server Tester connects to your mail server via SMTP, tests the handshake, verifies TLS support, and optionally tests authentication. Diagnose mail server connectivity issues.
Level Up Your Email Deliverability & Authentication
Get a free audit of your current setup and see how FirstSales can help you achieve better results with less effort.
FAQ
Frequently Asked Questions
Learn how Firstsales protects your domain, lands emails in inboxes, and turns cold outreach into revenue—everything in one place.
SMTP Server Tester analyzes your input using email deliverability & authentication best practices and industry standards. Simply enter your data and get instant, actionable results. No technical knowledge required.
Yes, SMTP Server Tester is 100% free with no signup required. Use it as many times as you need without creating an account or providing any personal information.
Our tester provides real-time analysis based on current data and industry benchmarks. Results are updated regularly to ensure accuracy and relevance.
Yes, SMTP Server Tester is free for both personal and commercial use. Sales teams, agencies, and businesses worldwide use our tools daily.
Most tools process data in real-time without storing anything. Your privacy is important to us, and we never share your information with third parties.
