Email Platform Migration
Move your list to a new ESP without losing a subscriber
- Full subscriber export and import
- Custom property and tag migration
- Suppression list transfer
- Engagement segment preservation
- Delivery
- 3–5 business days
Sent to our team with your order — we confirm everything on your kickoff call before we build.
No sales call required to buy.
Prefer to talk first? Book a free call
What happens after you order
No mystery, no chasing. Here is exactly how it goes from order to live.
- 1
Place your order online
Buy directly from this page — no sales call, no back-and-forth quoting.
- 2
We email you within 4 working hours
You get a confirmation from our team with next steps and a short intake form.
- 3
You share access & assets
Send over the account access and brand assets listed below so we can start immediately.
See exactly what we need ↓ - 4
We build it
Strategy, copy, design, and build — typically delivered in 3–5 business days.
- 5
Review, activation & handoff
You review everything before it goes live. We activate it and hand over documentation.
Want to talk it through first? Book a free kickoff call — or tick the box at checkout and we'll send you the link.
What It Is
Switching email platforms is one of the easiest ways to accidentally lose months of list-building work. Done carelessly, you lose custom properties, break suppression compliance, or strip out the engagement history your new ESP needs to build accurate segments.
We migrate your list cleanly: subscriber export and import, custom property mapping, suppression list transfer, and historical engagement data mapped into your new platform's structure. You land in your new ESP exactly where you left off in your old one, not starting from zero.
Every migration is verified with a QA pass before we call it done, and you get documentation of what moved and how it was mapped.
Who It's For
- You're switching ESPs (for example, Mailchimp to Klaviyo) and need your list moved without gaps
- You have custom properties or tags that matter for segmentation and can't afford to lose them
- You have a suppression list that must transfer correctly to stay compliant
- Your new ESP account is set up but empty and needs historical data mapped in
Probably not for you if
- You don't have a destination ESP account set up yet — get that built first with Email Platform Setup
- You just need your store reconnected to your current, unchanged ESP — see E-Commerce Store Integration instead
- You're staying on the same platform and only need cleanup or segmentation — see Segmentation Strategy & Setup
What's Included
Need this scoped differently?
You're not locked into the scope above. Add your changes in the box when you order, or talk it through on your free kickoff call — we confirm everything before we build.
Book a free call to discuss changesHow It Works
Export and access
You provide an export of your current subscriber list, segments, and suppressions, plus admin access to your new ESP.
Mapping and import
We map custom properties and import subscribers, tags, and engagement data into the structure of your new platform.
Suppression transfer
We transfer your suppression list (unsubscribes, bounces, complaints) so compliance carries over exactly, with no gaps.
Verification and handoff
We QA the migration against your original data and hand off documentation. The full migration is delivered in 3–5 business days.
Typical delivery: 3–5 business days
What We Need From You to Get Started
Have these ready and we can kick off immediately — no back-and-forth delays.
- Export of your current subscriber list and segments (CSV or native ESP export)
- Admin access to your new/destination email platform account
- Export of your current suppression list (unsubscribes, bounces, complaints)
- A list of custom properties or tags currently in use
- Roughly 90 days of engagement history if your current platform can export it
- A point of contact to confirm mapping decisions during the migration
Frequently Asked Questions
No. We build and populate your new platform in parallel with your existing one, verify everything, and only recommend cutting over sends once the migration is confirmed clean.
Not for the list migration itself. If your new sending domain also needs authentication (SPF/DKIM/DMARC), that's a separate add-on — see SPF / DKIM / DMARC Setup.
We handle migrations between any two major email platforms, in either direction. Tell us your source and destination platform at checkout.
Buy online via the checkout button on this page, or if you'd rather talk first, book a free audit and we'll set it up together.
You'll get an intake form requesting your current list export and access to your new ESP. Once we have both, the 3–5 business day migration window starts.
Migration accuracy is verified with a QA pass before handoff, and a reasonable round of corrections is included if we find mapping issues — this isn't an unlimited-revision engagement.
Prefer an ongoing, fully managed engagement instead of a one-off build?
See our managed serviceNot sure yet? Talk to a human first.
You don't have to buy blind. Book a free 30-minute call and we'll tell you honestly whether Email Platform Migration is the right move for your store — or point you at something better.
Prefer email? [email protected] — we read every reply.
Ready to Get Email Platform Migration Live?
No sales call required — buy online or get a free audit first.