Business email marketing lists we are selling contain a percentage of bouncing emails and different lists have different bouncing rates. You can always request a sample of database you are about to purchase to ensure the quality. If your email sender charges high price then we strongly recommend to get an email verification service so you don’t pay your email marketing company for bouncing emails.
You will also notice some duplicate contacts, not with us, but with every email list provider unless you pay or ask for unique records only. One company can be listed in more than one business categories or have more than one companies is an example of a duplicate contact. We provide free email support and duplicates removal service once you purchase from us.