Resend
China-friendlyA developer-first modern email API
Resend, built by ex-Vercel engineers, focuses on developer experience: minimalist API, Re…
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SendGrid
Visit official siteTwilio-owned high-volume email platform
Pricing：免费 100/天，Essentials $19.95/月起
Good for
- Mid-volume mixed transactional + marketing email needs
- Teams needing IP pools, sub-users, and SLAs
Not good for
- Devs who prize ultimate simplicity (Resend is sharper)
- Pure marketing EDM scenarios (Mailchimp / Brevo are friendlier)
Integration effort
REST API, SMTP relay, official SDKs in major languages.
KYC and entity
None. Sender domain reputation is reviewed by SendGrid.
Payouts to China
N/A.
Privacy / compliance notes
SOC 2, GDPR, ISO 27001.
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Summary
SendGrid is mature on bulk delivery, IP pool management, and deliverability. The free 100/day tier suits steady mid-sized businesses.