SMTP Checker 2025 - Credential Validator
SMTP Checker 2025 is a user-friendly Windows application designed to validate SMTP credentials efficiently. It allows you to verify SMTP login details, send test emails, and manage recipient lists seamlessly. Built with multi-threaded support, real-time logs, and progress tracking, it simplifies your email validation tasks.
Usage scenarios include verifying SMTP accounts, email marketing list validation, or security testing with proper authorization. Always operate ethically and within legal boundaries.
Features
- SMTP List Entry: Format per line - HOST|PORT|USER|PASS
- Manage Recipients: Add, delete, load, save, select multiple
- Login Only Mode: Verify credentials without sending emails
- Send Test Emails: Customize subject, sender, content with optional randomization
- Thread & Delay Control: Optimize performance and avoid spam filters
- Real-time Logs & Progress: Monitor verification status live
- Output Files: cvalid.txt and cvalid_logins.txt for valid accounts
- Internet Monitoring: Auto pause/resume based on connectivity
System Requirements
- Operating System: Windows 10/11
- Python: 3.8 or later (tkinter included)
Important: Use this tool responsibly. Conduct authorized testing only. Unauthorized use is illegal and unethical.
Price: 500 PKR
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