1.) good point, I need to have a redirect for a get reqeuest on api.maskedmail.net. Right now it only accepts posts to test the service. 2.) thanks for noticin

1.) good point, I need to have a redirect for a get reqeuest on api.maskedmail.net. Right now it only accepts posts to test the service. 2.) thanks for noticing I will change that. 3.) I am going to provide sign ups with an API key to with a few more features. If you do want to give it a shot now just send a post request with a JSON body of the email address you want to test. 4.) Rolling your own has more to do with setting up a mail server than writing any code. The example is in ruby but it is just an example of consuming the service. Rolling your own at this point might be fine for you, I think the value is the convenience of not configuring a mail server, or if you don't have a mail server as part of your hosting (like heroku). The critical review is definitely helpful. I appreciate you taking the time to give such thorough feedback.