We've found buying email data from virtually any source is nearly always a complete waste of time - unless someone can prove us wrong.

The people who appear on these lists have been emailed, emailed again and then again.

They have probably tried to unsubscribe from everything, they know what a spam email is and the reality is that they just don't want to receive you email, however nice it may be.

No matter what promises the data vendor gives you, always try and get a sample from them first.

Recently a Digi customer did a mailing to a bought-in list that resulted in six complaints about spam.  These were progressed all the way up to nearly getting the Digi server blocked.

So if you're thinking about buying email data? - just don't bother.