Recently, I was helping a Non Profit using Monday who was struggling with managing their Mailchimp audience and asked me if there was a way to connect Monday to Mailchimp so that new contacts would be added to their Mailchimp audience automatically.
I explained that, while Monday does have a native Mailchimp integration, it is so limited as to be pretty much unusable. (You can read all about these limitation in this post I published recently here on this community).
However, I had just set up Fillout Forms for this Non Profit and I was 99% certain that Fillout had a Mailchimp integration. So I promised them I’d look into it and report back.
Well, turns out that the Mailchimp integration in Fillout is freakin’ awesome. (Which doesn’t surprise me – every feature I have used in Fillout just works and works damn well!).
So, I thought I’d share a quick post highlighting some of the killer features Fillout’s Mailchimp integration offers.
Here goes nothing…
The Killer Features of the Fillout Forms + Mailchimp Integration
When it comes to growing an email list and running effective campaigns in Mailchimp, the first hurdle is always the same: capturing clean, structured data from your forms. Most form builders make this harder than it needs to be. Either the integrations are shallow, the mapping is clunky, or you’re stuck with a single “dump everything into one audience” workflow.
That’s why the Fillout Forms + Mailchimp integration is such a game-changer. Unlike the limited native connections you’ll find elsewhere, Fillout gives you full control over how leads flow into Mailchimp, how they’re segmented, and how you can personalize every campaign.
Here are the killer features that make this integration stand out.
1. Direct, Real-Time Sync
No more exporting CSVs or waiting for batch updates. With Fillout, every form submission is synced to Mailchimp instantly. Whether you’re capturing newsletter signups, webinar registrations, or gated content downloads, your Mailchimp audience is updated in real time, ready to trigger automations right away.
2. Audience, Segment, and Tag Control
One of the biggest headaches with other form integrations is the lack of segmentation. Fillout solves this by letting you decide exactly which audience, segment, or tag a new contact belongs to.
For example:
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Newsletter signups → Newsletter segment
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Event registrants → “Webinar” tag
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Customers → Client audience
This ensures the right people get the right campaigns, and you avoid embarrassing mistakes like blasting a prospect campaign to paying customers.
3. Full Custom Field Mapping
With Fillout, you’re not limited to just capturing names and emails. You can map any field from your form to any field in Mailchimp, including custom fields.
That means you can send over details like:
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Company name
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Lead source
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Product interest
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Deal stage
This level of data control is what makes true personalization possible—beyond just “Hello [First Name].”
4. Conditional Logic for Smarter Workflows
Want to send different form respondents to different Mailchimp segments based on their answers? Fillout has you covered with conditional logic.
Example:
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If someone selects “I’m interested in Product A” → Add to Product A nurture sequence.
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If they choose “I’m a current customer” → Add to Customer Updates list.
This makes your campaigns more targeted and your automations more intelligent.
5. Seamless Automation Triggers
Because Fillout integrates natively with Mailchimp, every submission can kick off Mailchimp’s automation workflows. Welcome emails, nurture sequences, abandoned cart reminders—everything just works.
Instead of manually managing who gets added where, your forms automatically power the entire lifecycle journey.
6. Cleaner Data, Better Campaigns
Fillout also helps maintain clean, compliant lists. With built-in double opt-in, spam protection, and validation features, you’ll avoid the junk signups that can hurt deliverability. The result? Better engagement rates and a healthier Mailchimp account.
The Bottom Line
The Fillout Forms + Mailchimp integration is more than just a “connector.” It’s a precision tool for feeding the right data into Mailchimp, keeping your lists clean, and powering segmented, automated campaigns.
If you’ve been frustrated by the limitations of other Mailchimp form integrations, Fillout will feel like a breath of fresh air. It doesn’t just send data—it gives you control, flexibility, and the ability to run smarter email marketing without extra hacks or workarounds.