Smtp toolbox

Hi everyone!
I just launched a new website https://smtptoolbox.com/ that provides several helpful tools for email and domain testing:

🔹 SMTP Server Tester
Test SMTP servers and send messages with your own HTML content.

🔹 Blacklist Checker
Scan IPs and domains to see if they're listed on major blacklists (like Spamhaus, Barracuda ..).
Also checks PTR and A records automatically.

🔹 SPF Record Checker
Check SPF records for multiple domains at once.

I hope this site is useful to you!
If you have any suggestions, need help, or are looking for scripts or code, feel free to reach out. I'm happy to help. 🙏

Thank you! 😊