Information
Welcome to Valid Mailbox. At present we offer two services. One is our easy-to-use email address List Validator and the other is a free single email address checker.
The free email checker is available for anyone to use. The List Validator requires registration and credit purchases. Both work in the same way but the List Validator allows you to upload a whole list of email addresses, get them validated and retrieve the results. If you just want to test it out yourself then you can register and get the 20 free credits to try it with.
The validation process first checks to see if the email addresses matches the RFC2822 specification, then it checks that the domain part of the email address is an active domain and that it is has one or more mail servers. Lastly it communicates with the mail servers with a series of validation messages and interigates the responses. The process takes a few seconds so uploading a large email address list to validate will take an appropriately long time to complete (you can see how long a single email address takes to validate by using the free checker and then multiply this amount of time by the number of addresses in your list). You should also make sure you have enough credits before uploading your file.
Your privacy and the privacy of the people on your lists are important to us and for this reason we keep no record of any email addresses contained on your lists and we delete all of the uploaded files as they are read. We also keep no record of the results that are returned to you other than the date and time of the request and number of email addresses checked.
One of the things we are thinking of adding in the future is a web service so that registered users can connect using their own applications to validate either one or more email addresses directly. This will probably be on the same basis as the List Validator.