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Howie J.

Need help with mailing list

I have two mailing lists. List A is approximately 16,000 customers. List B
is about 6,000 customers. All of the customers on List B are also on List A.
I need to remove all of the customers on List B, from List A. My expected
result is List A minus List B = List C (new list of about 10,000). This
should be simple, but I do not know how to start.

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