SMTPy
Email aliasing & forwarding that doesn't read your inbox.
Atom Studios Create unlimited email aliases on your own domain, route them to any inbox, manage forwarding rules per alias. Self-hostable. EU-based. No tracking. The aliasing layer for people and small teams who don't want a third party reading their inbox.
Why it's different
Shared inbox for teams
The only aliasing service with a true multi-user shared inbox. ProtonMail and Addy.io don't have it — and structurally can't add it without rebuilding.
Self-hostable + SaaS
Run our hosted version, or `docker compose up` your own. Same code, full feature parity. No paywalled offline mode.
50+ REST endpoints
Webhooks, transactional send, DMARC ingestion, automatic DNS verification. Built API-first, not GUI-first like every competitor.
Audience
Privacy-conscious individuals and small teams managing many vendor signups.
Tech stack
FastAPIAngular 21PostgreSQLDocker MailserverStripe
Compare SMTPy with
Internal note
Tier T0: Public, brand-impacting, used as the SMTP path for every other app.