Tools for Testing SMTP, DNS, other mail server types, and more

Here’s a great tool for testing DNS, Mail, SMTP, and similar environments to see if they are listening on certain ports across the internet.

https://www.dnswonder.com/Tools/

With it, you can test:

• GET DNS RECORDS
• GET MX RECORDS
• GET PTR RECORDS
• GET SPF RECORDS
• GET BLACKHOLE LIST (RBL)
• GET SMTP SERVER TYPE
• TEST SMTP CONNECTIVITY
• TEST EMAIL DELIVERY
• TEST EXCHANGE SERVER
• TEST IMAP SERVER
• TEST ZIMBRA SERVER
• TEST REGULAR EXPRESSION
• ENCRYPT DATA

Enjoy.