Migration hub · 20 guides
Every email platform migration, walked through step by step
Contacts move by CSV. Automations never transfer. Forms and integrations are what people forget, and deliverability is what suffers when the order is wrong. Each guide below is the mechanical walkthrough for one specific switch: what to export, what to rebuild, and how to ramp your first sends so a new sending reputation does not land you in spam.
Not sure the switch is worth it yet? Start with the 2026 pricing report — we track every platform's published prices weekly — or the general migration playbook for the principles behind all of these.
Leaving Mailchimp
6 destinations covered
Mailchimp → ActiveCampaign
You're outgrowing Mailchimp's automation ceiling and want ActiveCampaign's branching workflows and CRM.
3–5 hours
Read the walkthroughMailchimp → beehiiv
You're turning a Mailchimp list into a proper publication.
2–3 hours
Read the walkthroughMailchimp → Brevo
You're considering switching from Mailchimp to Brevo.
1–2 hours (3–4 with complex automations)
Read the walkthroughMailchimp → Kit (formerly ConvertKit)
You're considering switching from Mailchimp to Kit — formerly ConvertKit — for the monetization tools.
2–3 hours
Read the walkthroughMailchimp → Klaviyo
You're moving your store's email marketing from Mailchimp to Klaviyo.
4–6 hours
Read the walkthroughMailchimp → MailerLite
You're leaving Mailchimp for a cheaper, simpler builder.
2–3 hours, plus review wait time
Read the walkthroughLeaving ActiveCampaign
2 destinations covered
Leaving Constant Contact
2 destinations covered
Leaving GetResponse
2 destinations covered
Leaving Substack
2 destinations covered
Leaving AWeber
1 destination covered
Leaving beehiiv
1 destination covered
Leaving Flodesk
1 destination covered
Leaving HubSpot
1 destination covered
Leaving Kit (ConvertKit)
1 destination covered
Leaving Klaviyo
1 destination covered
Before you migrate anything
- Export your unsubscribes and cleaned contacts, not just your subscribers. Suppressing them on the new platform is both a deliverability measure and a compliance one.
- Authenticate your sending domain — SPF, DKIM and DMARC — before the first campaign, not after it underperforms.
- Rebuild the automations that earn money and delete the rest. A migration is the cheapest chance you will get to prune.
- Keep the old account live for two weeks so any form or integration you forgot to repoint shows itself.
- Ramp your sending: engaged openers first, then the wider list over several days.
Comparing destinations rather than mechanics? See the best email marketing software of 2026 or browse all platform reviews.