ESP Migration Cost Calculator

ESP MigrationEmail InfrastructureMigration CostPlatform Switch

Estimate the true cost and timeline of migrating your email program to a new infrastructure or provider.

Monthly Email Volume

Number of Email Templates

Number of Automation Flows

Migration Type

Internal Dev Team Available?

IP warm-up: New IPs require gradual volume ramp. Rushing causes deliverability failures.
Data portability: Some ESPs restrict data export — verify before committing to migration.
DNS propagation: SPF, DKIM, and DMARC record changes take 24–48 hours to propagate.
Suppression lists: Unsubscribes and bounces must be migrated to avoid compliance violations.

Plan for 30–90 days of parallel operation where both old and new systems run simultaneously to validate deliverability before full cutover.