add mxtoolbox

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Shawn Cresante 2022-10-28 13:23:52 -04:00
parent 3be5118793
commit 265895b29d
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@ -534,6 +534,7 @@ algorithms, knowledgebase and AI technology.
* [Have I Been Pwned](https://haveibeenpwned.com) - Search across multiple data breaches to see if your email address has been compromised.
* [Hunter](https://hunter.io) - Hunter lets you find email addresses in seconds and connect with the people that matter for your business.
* [MailTester](http://mailtester.com)
* [mxtoolbox](https://mxtoolbox.com/) - Free online tools to investigate/troubleshoot email server issues.
* [Peepmail](http://www.samy.pl/peepmail)
* [Pipl](https://pipl.com)
* [Reacher](https://reacher.email) - Real-time email verification API, written in Rust, 100% open-source.