Conventional wisdom is that 40% of the success of a direct mail campaign is attributed to the quality of the mailing list. Your offer has to go to people who want or need your product and have the ability to pay for it.
Having a clean mailing list is an important way to improve your marketing ROI. Your response rates will improve because you are mailing to people who are fully qualified to buy your product. Your costs go down because your marketing piece is being delivered by the USPS.
We are able to clean your house list or company database by using the following criteria:
National Change of Address (NCOA)
Proprietary Change of Address (PCOA)
Phone Number Deduplication
DMA Mail Suppression
Taxes, Liens, and Judgments Suppression
When using Castle Press’ mailing services your list will be analyzed and incorrect information will be returned to you for updating your company database.
Your file requirements are:
Your file must have a minimum of 100 records and no more than 5 million records.
Your file must be in one of the following formats:
Your file must include a minimum of ALL of the following fields:
Zip Code (5-digit)
You should also include a unique ID field so you can easily find any changed records in your database when you update it.
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