Privacy-first newsletter advertising for European publishers
European publishers can't rely on cookie-based display revenue. MailAdx solves this by design — open-time ad serving, SHA-256 hashes instead of cookies, contextual targeting that requires no cross-site profiling. Earn €12–€40 CPM without compromising your subscribers or your compliance.
€16
Average EU newsletter CPM
€35+
B2B tech newsletter CPM
100%
GDPR compliant by design
41%
Avg. newsletter open rate
Monetise your European newsletter without the GDPR headache
MailAdx was built for the post-cookie era: hashed identifiers, contextual signals, no third-party data dependencies. Your inventory stays fully monetised. Your subscribers stay protected. You keep 100% of what you earn.
- Open-time ad serving — ads load on open, never wasted on sends
- 100% fill rate with programmatic + direct-sold demand
- No revenue share — you keep everything you earn
- Works with any ESP in under 10 minutes
EU Publisher CPM Benchmarks (2026)
MailAdx platform data, Q4 2025. Effective rates on opens.
Top newsletter categories in Europe
Avg. open rate
43%
Avg. CTR
2.1%
Ad blocker bypass
100%
Brand safety
IAB-compliant
Reach European audiences — cookieless, compliant, and effective
Post-GDPR, effective EU advertising means moving beyond third-party cookies. Newsletter advertising is the most effective cookieless channel available — engaged audiences who opted in, ads that can't be blocked, and first-party context that actually converts.
- Topic, geo & device targeting across 500+ newsletters
- Text, image & native ad formats
- Real-time delivery — impressions, clicks, CTR dashboard
- GDPR-compliant by design — no cross-site cookies
GDPR-compliant ad serving by architecture, not by checkbox
GDPR readyMailAdx processes the minimum data required: a hashed email identifier, coarse geo (country), and device class. No plaintext emails. No behavioural profiles. No third-party cookies. Data Processing Agreements are available for all EU business customers, and EU data residency options are available on request.
Read our compliance documentation →Start with MailAdx in Europe
Free to start. Approved within 24 hours. No credit card required.