We send out regular (weekly) communications to our resellers. So far we have sent 4 separate email campaigns.
How do I segment my list to discover those who've never open any of these 4 campaign emails?
I've tried to do it by adding the condition "Campaign was not opened" and then selecting one of the campaigns. Then adding another 3 AND conditions and setting the other 3 email campaigns.
But the segment ends up as being zero, when I'm pretty sure there are a few people in my list who've never opened a single email.
It sounds like you are doing the right thing - Did Not Open <campaign> AND Did Not Open <campaign2> would be the way to go.
If you'd like us to take a look at the specifics for you, drop us a line at support with the relevant details and we can check it out for you.
Cheers Mathew I'll do that.