SimpleRelay

Self-hosted, multi-tenant SMTP relay with a web dashboard and DNS validation

Servicefreeglobal

SimpleRelay is a self-hosted, multi-tenant SMTP relay with a web dashboard, routing outbound email through multiple upstream SMTP providers based on sender address, with DNS validation and per-sender access control. It's aimed at organizations wanting centralized control over outbound email routing across several providers instead of hardcoding one provider per application.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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