how can i see a list of contacts that have not opened my campaigns in over a year.

Hello @MattS05 ,

You can use segmentation to filter out contacts who've chronically not opened your emails, Contact Activity > Did Not Open > Any Email > In the last > 1 year. You can then further manage this segment by adding it to a list, determining which contacts may still be worth keeping (such as very recent additions based on Date Added), and then deleting all the remaining non-openers and the segment list. There's also our pre-built low engagement segmentation, which you can use to re-engage those specific contacts that rarely if ever open your emails.