Monetize your Drip automation broadcasts with open-time ads
MailAdx integrates with Drip via custom HTML blocks and Liquid merge tags. Earn open-time ad revenue from your Drip campaigns without altering your email workflows.
Why add MailAdx to Drip?
How to integrate MailAdx with Drip
- 1
Create your MailAdx publisher account
Sign up at mailadx.com/signup and get approved (up to 24 hours). No credit card required.
- 2
Create an ad unit and copy the HTML tag
In the Publisher Portal, create a new Ad Unit. Set your floor CPM and format. Copy the generated HTML ad tag.
- 3
Set up the email hash custom field in Drip
Drip uses Liquid template variables. Pre-compute or store the SHA-256 email hash in a custom subscriber field (e.g., subscriber.email_md5) or pass it via Drip's API.
- 4
Add an HTML block to your Drip broadcast or workflow
In the Drip email builder, insert an HTML element and paste the MailAdx ad tag, referencing {{ subscriber.email_md5 }}.
- 5
Test and launch
Send a test email to yourself, confirm the ad loads on open, and activate your campaign.
Drip editor tips
In Drip's visual email builder, insert an HTML element and paste the MailAdx ad tag. Reference the subscriber email hash via liquid syntax {{ subscriber.email_md5 }}.
<!-- MailAdx ad tag — decision runs at open time -->
<a href="https://mailadx.com/api/v1/serving/click?pub=YOUR_PUB&pk=header&eh={{EMAIL_SHA256}}"
target="_blank">
<img src="https://mailadx.com/api/v1/serving/display?pub=YOUR_PUB&pk=header&eh={{EMAIL_SHA256}}&w=600&h=100"
width="600" height="100" alt="" />
</a>
<!-- Replace {{EMAIL_SHA256}} with your ESP's email hash merge tag -->Drip + MailAdx: common questions
Does MailAdx work with Drip workflow automations?
Yes. MailAdx ad tags work in both one-off Drip broadcasts and automated workflows. The ad decision happens at open time regardless of when Drip sent the email.
How does billing work when I send through Drip?
You pay Drip for email delivery as usual. MailAdx charges only when a subscriber opens and the ad image is requested — not when Drip sends the email. A 10,000-recipient send with a 35% open rate generates roughly 3,500 billable impressions, not 10,000.
Can I use multiple ad placements in one Drip template?
Yes. Create separate ad units in MailAdx (e.g., header, mid-roll, footer) and paste each tag in a different HTML block. Each placement has its own floor CPM and reporting in the Publisher Portal.
Does the Drip integration work on mobile email clients?
Yes. MailAdx serves standard HTML image tags that render in Gmail iOS/Android, Apple Mail, Yahoo, and Outlook mobile. No JavaScript runs inside the inbox — the ad is a plain image request at open time.
Billing with Drip
MailAdx bills publishers a flat platform fee per impression served — typically $0.30–$0.50 CPM — regardless of which ESP you use. Your Drip subscription fee is separate; MailAdx does not charge per send or per subscriber. Advertisers pay you directly (or via programmatic demand) above the platform fee. Top up credits in the Publisher Portal before going live; impressions pause gracefully when credits reach zero.
Troubleshooting Drip + MailAdx
Ad image shows as broken or blank
Confirm the email-hash merge field substitutes in a real Drip test send — not just the editor preview. An empty hash causes MailAdx to skip the auction. Re-send a test to yourself, view the raw HTML source, and verify the eh= parameter is populated.
Impressions not appearing in Publisher Portal
Open the test email in a client that loads remote images (Gmail web, Apple Mail with images enabled). Some corporate Outlook configs block external images by default. Wait 60 seconds and refresh the portal — reporting is near-real-time.
Merge field syntax error in template
Each ESP uses different personalization syntax. Double-check you replaced {{EMAIL_SHA256}} in the MailAdx tag with Drip's exact variable from the setup steps above. A typo in the merge tag will break the URL at open time.
Related resources
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