Business mailing lists typically only have a 80% accuracy rate. This is due to the fact that most business data is voluntarily offered by the businesses to D&B, rather than a company pulling information from a database.
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Not sure where you get your statistics or information from but this is highly inaccurate. The D&B database is a multi-sourced database with the business owners being only one of the sources. Additionally, information accuarcy is benchmarked frequently with SIGNIFICANTLY higher results than your stated 80%.
The original posting assumes that the data in a database comes from — where, exactly? If the distinction being made is that self-reported data is inferior to data confirmed via objective sources, you will get no disagreement — except, perhaps, from compilers who ask Yellow Page-listed companies to self-confirm their information.
I have to respectfully disagree on the 80% business mailing list accuracy you mentioned. While some list services may indeed be inferior, I work with 3 or 4 that I have had very good results from.
Final step…CASS certify before you mail.
Chris Mitchell
http://258marketing.wordpress.com/
Directmail.com updated their mailing lists every month. Very few mailing list companies provide such service.