useSend is an open source email platform designed for sending transactional and marketing emails. It allows users to pay only for the emails they send, without charging for storing contacts. The platform supports unlimited contact books, domains, and team members. It serves as an open source alternative to services like Resend, SendGrid, and Postmark.
Recommended for
Solo / IndiePre-Seed
Solo / IndiePre-SeedSeedScaleupLate-Stage
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Added on
Apr 3, 2026
SSIE Stage Fit Recommendation
Following data shows why useSend is recommended for listed teams.
| Stage | Stage Fit Reasons |
|---|---|
| Solo / Indie1 person with$0–$2,000 MRR |
|
| Pre-Seed2–5 people with$0–$10k MRR |
|
| Seed5–15 people with$10k–$100k MRR |
|
| Scaleup50–200 people with$500k–$2M+ MRR |
|
| Late-Stage200–1,000+ people with$2M+ MRR |
|
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