I am looking for an efficient process to identify all contacts which did not open any e-mail for one or two years, because I want to eliminate these contacts. Can somebody tell me how I should proceed?
Hello @Matthiasz ,
I'd recommend using the segmentation system to find the contacts who've chronically not opened emails. Most customers for these purposes will set the criteria for Contact Activity > Did Not Open and then select a time range. Once the segmentation is created you can add those contacts to a list (something generic like deletion list or did not open list), then sort them out.
You may want to check when the contacts were uploaded (Date Added list view, most recent at the top), as the report will likely grab some very recent additions if you haven't sent a lot of emails to them since they were added. You can remove the recently added (up to you what "recent" entails) contacts by selecting them, going to manage lists, and then removing from the deletion list. Once you feel confident that the deletion list only contains contacts that are just taking up space, you can select them all and delete them. This will ensure they're also removed from other lists they were a part of.