I have been working hard to keep our 4,000 contact data base up to date for the past several months. Whenever I get a bounce report from a new email, I go through and check every one and delete as applicable. I have 2 problems: 1. I am getting random bounces every time from people I know are active and still have the same email. What causes this? Some people have bounces all the time and still open the emails. Others I find multiple contacts that bounced an email on the same day, but never before or after? 2. The opposite problem - I check every week, but still end up with new bounces on the list that were not there the week before, yet when checked they show a history of bounces.
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