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, open-time delivery reporting.
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
Ad Journeys: drip campaigns without the opt-in
MailAdx Ad Journeys let you run multi-step ad sequences across newsletter audiences. Step 1 reaches all eligible readers. Step 2 automatically reaches subscribers who received Step 1 — after a waiting period you define. By Step 3, you're talking to the highest-intent readers in the campaign. Use native ads, image banners, or mix formats across steps. No list upload, no ESP changes, no opt-in form. Just set your steps, upload your creatives, and activate.
- 2–5 step sequences with per-step creatives — native or banner
- Automatic subscriber advancement by email hash tracking
- Per-step funnel analytics: impressions, clicks, progression rate
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.
Ad Journeys: sequential ad campaigns
Run 2–5 step campaigns that advance subscribers from awareness to conversion across multiple sends.
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.