I used these tools in the past: https://mxtoolbox.com/ https://www.mail-tester.com/. - Source: Hacker News / about 2 months ago

Suprised to not see https://mxtoolbox.com in this list too. - Source: Hacker News / 6 months ago

MX Toolbox - https://mxtoolbox.com/ - may be a place to start digging. Source: 7 months ago

You can try https://mxtoolbox.com/. Source: 7 months ago

The url I want is https://mxtoolbox.com/ and the https://mxtoolbox.org/ one redirects to malware. Source: 7 months ago

You can try Dehashed (Paid, only a few bucks) and Holehe (Free. If you don't want to install it, use it through epieos.com). Source: over 1 year ago

After further looking it seems similar to https://dehashed.com. Source: over 1 year ago

I'm sorry this happened to you, but don't be so surprised. Phishing and MITM attacks are alive and well, and 2-FA is just a bandaid for bad password practices. You might do well to check on dehashed.com for your own credentials. Source: over 1 year ago

2 useful resources are: dehashed.com and https://github.com/hmaverickadams/breach-parse from heath adams. Keep in mind that it is not a good idea to use these in an unethical way. Doing illegal stuff can and will get you in trouble. Source: over 1 year ago

Agree with this! Sites like Dehashed will let you search for breached usernames and have relatively cheap options for a week’s worth of access. Source: almost 2 years ago