Instead of the only function of tags being that the main list filters out anything BUT the tags, there should be an option to filter out the tagged contacts, excluding them from that particular sending but not having to delete them from the list or having to create a new list. So maybe have an 'include only' x tag or 'exclude' x tag. I think the tags and segmentation features need a lot of work. See competitor Campaign Monitor for how it all should work!
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