MailAdx vs Beehiiv Ad Network for newsletter monetisation
Beehiiv's ad network is built for Beehiiv newsletters. MailAdx is platform-agnostic infrastructure that works alongside or instead of Beehiiv's ads — giving you more control, higher CPMs, and demand beyond a single marketplace.
Beehiiv's built-in ad network is a convenience feature for publishers already on the Beehiiv platform. It connects publishers to a curated pool of advertisers without any additional setup. For small or early-stage newsletters, it's a low-friction way to start earning.
MailAdx is infrastructure, not a marketplace. Rather than placing you in a pool of publishers competing for Beehiiv-network advertisers, MailAdx gives you the tools to run your own ad stack: custom price floors, direct advertiser relationships, OpenRTB programmatic demand, and a publisher portal that gives you full visibility into every impression.
Critically, MailAdx integrates with Beehiiv. You can keep sending through Beehiiv while using MailAdx as your ad server — the two aren't mutually exclusive. Many Beehiiv publishers use MailAdx to layer direct-sold and programmatic demand on top of (or instead of) Beehiiv's ad network.
Beehiiv's ad network reportedly takes around 30% of gross ad revenue in exchange for handling advertiser matching and creative review. On a newsletter earning $3,000/month in ad revenue, that's $900 going to the platform. MailAdx's serving fee on the same impression volume is typically $80–$120 per month — the rest stays with the publisher. At higher revenue levels the arithmetic becomes even more decisive, which is why many Beehiiv publishers running five-figure monthly ad businesses have migrated their ad stack to MailAdx while keeping Beehiiv as their ESP.
One practical nuance: Beehiiv's ad network and MailAdx are not the same type of thing. Beehiiv's network is a curated demand pool with its own advertiser relationships and content guidelines. MailAdx is ad serving infrastructure where you control which advertisers can run, at what price, and in what format. You can displace Beehiiv's network entirely (replacing its demand with MailAdx's programmatic sources), or you can keep Beehiiv's network active in Beehiiv while running MailAdx as your primary ad server for direct-sold deals on a separate template layer.
The Beehiiv merge tag for MailAdx integration is {{subscriber.email_md5}} or a SHA-256 equivalent depending on your Beehiiv plan. MailAdx uses this hashed email for frequency capping and identity resolution. No subscriber PII leaves your Beehiiv environment — the hash is a one-way transformation of the email address, GDPR-compatible by design. Impression tracking fires when the subscriber opens the email and their client fetches the MailAdx ad tag URL.
Feature comparison
| Feature | MailAdx | Beehiiv Ad Network |
|---|---|---|
| Works with Beehiiv ESP | ||
| Publisher-controlled ad stack | ||
| Custom price floor management | ||
| Direct advertiser relationships | ||
| OpenRTB programmatic demand | ||
| Managed demand network access | ||
| Open-time ad server | ||
| Multi-placement per newsletter | ||
| Works with non-Beehiiv ESPs | ||
| White-label publisher portal | ||
| No revenue share on earnings | ||
| Native ad format (composite PNG) | ||
| Ad Journeys (sequential campaigns) | ||
| Zero-setup passive income |
Where MailAdx wins
Infrastructure vs platform feature
Beehiiv's ad network is a feature of the Beehiiv platform — it only works for Beehiiv newsletters and terms are set by Beehiiv. MailAdx is a standalone ad infrastructure layer you own: you set the floors, choose the advertisers, and connect to demand sources you control. Publishers consistently earn 30–50% more per impression when switching from passive ad networks to MailAdx.
Keep using Beehiiv — just add MailAdx on top
MailAdx integrates with Beehiiv via merge tags. You don't have to choose between your ESP and your ad stack. Add the MailAdx ad tag to your Beehiiv template, set up placements in the Publisher Portal, and layer programmatic and direct demand on top of whatever Beehiiv's network delivers. Use MailAdx as your primary monetisation or as a top-up layer.
No revenue share
Beehiiv's ad network takes a revenue share from every impression. MailAdx charges a flat per-impression serving fee and you keep 100% of what advertisers pay you. For publishers earning $2,000+/month in ad revenue, this difference compounds quickly.
Direct advertiser relationships
With MailAdx, advertisers can discover and buy your inventory directly through the advertiser portal, or you can negotiate custom rates with brands you've approached yourself. With Beehiiv's network, all advertisers come through Beehiiv's marketplace and you never own that commercial relationship.
When Beehiiv Ad Network is the better choice
- You send exclusively through Beehiiv and want zero-effort monetisation with no additional account to manage.
- Your newsletter is early-stage and the overhead of running an ad stack outweighs the higher eCPM.
- You want Beehiiv to handle all advertiser sourcing and creative review on your behalf.
- You prefer a revenue-share model where you only earn when advertisers spend — no prepaid credits required.
Not sure which fits your situation? Talk to us — we'll give you an honest recommendation.
Frequently asked questions
Can I use MailAdx while keeping my Beehiiv subscription?
Yes. MailAdx is a separate ad serving layer that integrates with Beehiiv via a custom HTML block and subscriber merge tag. Your Beehiiv subscription continues unchanged — you're adding MailAdx to handle ad decisioning, not replacing Beehiiv as your ESP. Most Beehiiv publishers complete the integration in under an hour.
What revenue share does Beehiiv's ad network take?
Beehiiv does not publish its exact revenue share terms publicly, but publisher reports put the platform cut at approximately 30% of gross ad revenue. MailAdx charges a flat per-impression serving fee rather than a revenue share — publishers keep the difference between advertiser spend and the serving fee, typically 95%+ of gross ad revenue.
Which gives better eCPM — Beehiiv Ad Network or MailAdx?
MailAdx publishers can negotiate direct-sold deals at custom rates and set floor CPMs above which programmatic demand must bid to win. Beehiiv's network sets rates based on its marketplace dynamics. Publishers with engaged audiences in premium niches (B2B, finance, SaaS) typically achieve significantly higher eCPMs through direct relationships on MailAdx than through a curated marketplace.
Does disabling Beehiiv's ad network affect my Beehiiv account?
No. Beehiiv's ad network is an opt-in feature. You can disable it without affecting your sending, analytics, paid subscription, or any other Beehiiv feature. Publishers often run a transition period where Beehiiv's network fills slots MailAdx doesn't yet have demand for, then phase it out as their MailAdx direct and programmatic demand grows.
What merge tag does Beehiiv provide for MailAdx?
Beehiiv provides {{subscriber.email_md5}} as a merge tag that substitutes the MD5-hashed version of each subscriber's email. MailAdx also accepts SHA-256 hashes, which some Beehiiv plans provide. Use the hash in the eh= parameter of your MailAdx ad tag URL — MailAdx uses it for frequency capping and identity resolution without handling raw PII.
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