The project I work on, which also hosts user-generated content, ran into related problems: - Outlook365 blocking any emails containing our domain - ISPs block

The project I work on, which also hosts user-generated content, ran into related problems: - Outlook365 blocking any emails containing our domain - ISPs blocking our domain via DNS filtering In each case the blocklisting process was far from transparent and mitigation was difficult and stressful. If you're in the same boat, reach out to me (email in profile). I believe we can make this topic a little less scary by connecting and sharing learnings.