Resend Free, 3,000 emails free per month

Free limits: Emails are free up to 3,000 per month and 100 per day. Sent and received emails are counted together, and usage is calculated per recipient in To, CC, and BCC. Up to 3 verified domains can be used, and the data retention period is 30 days.

Eligibility: This is a general Free Tier, with no restriction requiring users to be new subscribers.

Card registration: The terms explicitly state that billing information is not required.

When used in Korea: Tokyo can be selected as the email sending region. Customer and account data are stored in the United States. Registration from Korea has not been tested.

When not in use: The specified deletion period for unused items needs to be confirmed. Resend may suspend email delivery depending on bounce and spam rates.

If you exceed the limit: Resend may change or transition its Free Tier overage policy in accordance with its terms. This is distinct from paid overage options, and there is no guarantee that charges will not continue to accrue.

Commercial use: The terms reviewed do not contain a restriction requiring use only for personal, non-commercial purposes. Consent from recipients and anti-spam policies still apply.

Usage period: This is not a limited-time trial.

https://resend.com/docs/knowledge-base/account-quotas-and-limits

https://www.resend.com/legal/terms-of-service

https://resend.com/docs/dashboard/domains/regions