Advertise in the most engaged inboxes on the internet
MailAdx DSP gives advertisers precision access to newsletter audiences — topic targeting, creative management, daily budgets, and transparent delivery reporting across hundreds of curated publications.
Why newsletter ads outperform display
Newsletter readers are a self-selected, high-intent audience. They chose to receive content on a specific topic, they read it in their inbox rather than scrolling past it, and they do so on a regular cadence. Average open rates for curated newsletters run 35–55%, versus the 0.05% click-through of a typical display banner. MailAdx gives you systematic access to that attention.
- Average CTR 3–5× higher than display or social
- Contextual relevance from topic-matched placements
- B2B audiences unreachable via social platforms
Launch your first campaign in 20 minutes
The MailAdx advertiser onboarding flow takes under 20 minutes. Set your target audience parameters, upload a creative (or use our text-ad generator), set a daily budget, and submit. Our team reviews placements and approves campaigns within one business day. No lengthy IO negotiations, no minimum spends for self-serve campaigns.
- Self-serve campaign creation with guided flow
- AI-assisted ad copy suggestions
- No minimum spend on self-serve campaigns
Everything you need
All the features, none of the complexity.
Topic and audience targeting
Filter by newsletter topic, subscriber location, list size, and historical engagement rates.
Multi-format creatives
Text ads, image banners, sponsored sections, and native placements — upload once, run everywhere.
Budget and bid controls
Set daily spend caps, target CPM or CPC bids, and pause campaigns instantly.
Transparent delivery reporting
Real impressions, real clicks, real CTR — no inflated vanity metrics, no black-box attribution.
Brand safety controls
Whitelist or blacklist specific newsletters. Review publisher content before going live.
Private marketplace deals
Negotiate exclusive access to premium newsletter audiences at agreed CPM rates.
“Newsletter ads outperform every other channel we run. MailAdx gives us the targeting and reporting we need to scale newsletter spend with confidence.”
Launch your first newsletter ad campaign
Reach high-intent readers who actually read what you send. Set up targeting, upload a creative, and go live in under 20 minutes.