The mail app
that respects you.
Posta is a complete Gmail-style inbox powered by your own SMTP server. Custom domains, unlimited aliases, end-to-end encryption — all wrapped in an interface you'll actually enjoy using.
Welcome to Posta — your new inbox is ready
Quarterly review — please find attached the slides…
3 new mentions in your workspace
Trusted by teams at
Everything you need
Inbox, refined.
Every feature you'd expect from a modern mail app, plus the SMTP infrastructure most providers keep locked behind enterprise plans.
Unified inbox for every alias
Connect unlimited addresses — yourname@yourdomain.com, hello@yourbusiness.io, anything@posta.app — and read them all in one beautifully organized inbox.
Smart conversations
Threads that auto-collapse, replies that stay attached, and AI summaries for the long ones.
Custom folders & filters
Drag-drop rules, color tags, and shared team folders — organize your way.
End-to-end encryption
PGP and S/MIME built in. Send a confidential email to anyone — even outside Posta — and only the right pair of eyes will ever read it.
Scheduled send & undo
Write now, send at 7:14 AM sharp. Hit undo within 30 seconds — because mistakes happen at midnight.
The SMTP server
Your own relay,
running in the open.
Every Posta account ships with a real SMTP server. Configure DKIM, SPF and DMARC in one click, point your DNS at us, and start sending from your domain — no Posta branding in the headers, no quiet rewrites, no tracking pixels.
posta.app/domains — we generate the records for you.
SPF, DKIM and DMARC pass in under a minute on most providers.
Mail flows through Posta's global SMTP relay. Or use the included credentials in any external client.
Security
Private by default.
We don't read your mail. We don't train on it. We don't sell anything — there are no ads, period.
Your inbox isn't a billboard.
Remote images off by default.
Real encryption, no plug-ins.
Choose Paris, Frankfurt or Stockholm.
Pricing
Simple, fair pricing.
Start free. Upgrade only when you outgrow it.
Pro
For power users
- 100 GB storage
- 5 custom domains
- Unlimited aliases
- PGP & S/MIME
Team
For growing companies
- 1 TB / user
- Shared folders
- Audit logs
- SLA & priority
Your inbox, your rules,
your server.
Set up takes 60 seconds. Cancel any time — and unlike the others, your mail comes with you.
Open my inbox