You sure can add two (or more) tags per contact, so if they were interested in both Cats and Dogs, but not Birds, you could make a targeted campaign to both the Dog and Cat tags when sending. Bear in mind, though the contact would have both tags, when sending out the email to the two tags, that contact would still only get one copy of the email. It would not get duplicated.
Gwendolyn B Customer Engagement Specialist
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