Disposable Email Addresses

I recently had a couple of users signup and download a white paper and my follow up email to the same users the very next day started bouncing from the id. The strange part was that in spite of a double opt-in registration mechanism in place, I seem to have ended up with email addresses that were valid at sign up but invalid soon after.

A little bit of googling on the domain name of the email addresses led me to
mintemail.com. They offer a nifty little service to it's users where they offer a disposable email address that's valid for 4 hours.

From a B2B marketers perspective this is a nightmare scenario as the Lead Capture campaigns could be capturing worthless contact info that expires in a few hours time.
It sure is a boon to someone who'd like to access whitepapers, surveys, case studies, podcasts...etc of a company anonymously.

Maybe it's time the email validation routine in the registration form also validates for domain names known to host disposable email addresses.



August 20, 2008 at 11:14 PM

This could be true from a business point of view. From a user point of view, I believe users are tired of unwanted e-mails cluttering their inboxes. So it's a good idea to have a solution like that where a user can use it just for few hours only to access some information once, when it requires registration.

  Gerold Setz

April 21, 2011 at 1:38 AM

Hi Roy,

I hope you find my message between all the spam ;-)

I started a new service to detect disposable email addresses. Have a look at http://www.block-disposable-email.com/

Best regards,



December 11, 2011 at 11:23 PM

Hi Mr Rajan
just discovered your blog n its wonderful
u shud blog more..n kindly put a subcribe option for readers.
thanks n regards
all the best


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