Cleanlist’s data cleaning and enrichment services can save your organization time and money by improving your direct mail deliverability rates. For example, if your deliverability rate is 75% on 10,000 pieces, with an expense of $1.00 per piece, the cost of undeliverable items is $2,500. If your deliverability rate on the same mailing is 95%, the cost of undeliverable items is $500 – a $2,000 savings.