I needed a service to test all aspects of my mailserving infrastructure - unlocktheinbox provided exactly just that.

I never actually received the email with the code to use. Could not find a way to resend it. /Sadface

Best service for keeping your email settings safe :)

Very helpful tool, you just have to be a little careful as some of the "warnings" are actually "you're not using our premium service", but these are p... Read More

The most thorough tool for validating email setup I've been able to find. Checked everything I thought I needed checking, and alerted me to a number o... Read More

Very easy service to use! Got great results back that were easy to comprehend and helpful links to follow-up on action items. I anticipate that emails... Read More

Very good web service to thoroughly test the security of an email server

Great to test email

Really takes the pain out of analyzing and optimizing your mail config.

Mail delivery assurance A very useful way to ensure that mail configurations in your DNS are configured correctly to maximize the chance of mail being... Read More