If I send a campaign to duplicates lists and some emails are listed on more than one list of these lists, will the customer receive two or more duplicate emails?
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Campaigns to Duplicate Emails

Best answer by In the Inbox
Hi
Thanks for posting your question in the community. If you send a campaign to multiple lists/segments where a contact might be included in more than one of those lists, they will only receive the email once, but their engagement will be tracked in each list/segment they are included in under the audience breakdown for the email campaign.
I hope that helps!
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