Segments are great and all but any chance of some extra options? I would like to be able to filter out all subscribers that have been sent any of my campaigns so I don't hit the same person twice but that doesn't seem to be possible. Similarly, I would like to filter by people who were sent campaign A but not campaign B etc etc. The only way I can do this so far is to group the contacts and then sync them to CM with a custom field denoting which group they belong to, which isn't ideal.
Any chance its on the development list?
Thanks for the suggestions. Right now you can segment by when people were added, which might give you what you want for your first case (if they were added after the last campaign was sent, I mean).
We'll keep your suggestions in mind for the future.
Thanks for the suggestion but unfortunately segmenting by date added would not work for me, the dataset is not organised enough!