Migrating from Klaviyo to MailSend
This guide outlines how to migrate your contacts, templates, domains, credentials, and webhooks from Klaviyo to MailSend smoothly.
Quick Answer
Migrating from Klaviyo to MailSend involves exporting list databases and suppressions, updating DNS verification keys (SPF, DKIM, DMARC), and replacing API endpoints or REST API credentials. Most teams complete cutovers in under 2 hours.
1. What to Export
Export active profile listings and suppression databases. Download HTML templates for active user lifecycle flows.
2. API & API Credentials
If you run transactional APIs alongside ecommerce marketing flows, set up MailSend REST APIs or REST API credentials to handle receipt dispatches.
3. Verification & Testing
Create abandoned cart and onboarding drip flows in MailSend's visual automation planner. Run tests to confirm trigger sequences execute.
Cutover Checklist
- 1Verify custom domain settings in MailSend settings
- 2Configure SPF, DKIM, and DMARC DNS settings
- 3Export subscriber records and suppression logs from legacy provider
- 4Import contacts CSV database using visual mapper
- 5Replace legacy API keys and API host settings in application server configs
- 6Verify webhook event routes are active and tested
- 7Monitor live delivery metrics in analytics panels