In the absense of tags, I need to send people to multiple lists, but it seems I can't send to multiple lists at once, meaning I need to create duplicate campaigns for each list, is that right, or is there a workaround?
Ok, so from what I can see with Sending Groups... you still need to send multiple campaigns (one to each list), all Sending Groups does is auto detect if they have had the email already so you don't send to them twice?