Business tools

Alternatives to SendGrid

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Growth uses the latest collected snapshots; — means unavailable. Stars and licenses are not substitutes for feature verification.
Project	Stars	7-day gain	Language	License	Maintenance
postal	16,912	+21	Ruby	MIT	✅ Recently maintained

postal

postalserver/postal

📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail

✅ Recently maintained

Match the project description to required features, then trial migration and deployment with a small real dataset.

Repository verified 2026-11-02 · Official repository & installation

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