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Wein Mail
Our own email service, open to all.
An email service we built and run, open to everyone: get a free @wein.dev address and use it on the web or in any mail app.
Key facts
- Type
- Email service we run
- Address
- username@wein.dev
- Storage
- 1 GiB per account
- Status
- Open for sign-up
Overview
Wein Mail is an email service we built and run ourselves. Anyone can sign up for an @wein.dev address at mail.wein.dev, then send and receive mail in the browser or connect their usual mail app over IMAP/SMTP.
The problem
Email is one of the oldest internet services, and one of the hardest to run well: MX records, SPF, DKIM, DMARC, TLS certificates, spam and abuse protection all need constant care, so many teams simply rely on the big platforms. We wanted to prove that a small team can build a complete email service with open sign-up — and keep it running reliably.
How it works
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Mail is handled by Stalwart, an open-source mail server we deploy on our own dedicated server: MX, SPF, DKIM signing and DMARC are configured, TLS certificates renew automatically and the web front end sits behind Cloudflare.
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We wrote the sign-up service ourselves: Cloudflare Turnstile verification, Argon2id password hashing, and per-IP and site-wide rate limits. Each account can send up to 50 messages a day, with at most 10 recipients each, curbing abuse at the source.
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Open to everyone: every account gets 1 GiB of storage and can use webmail or connect any mail app over IMAP (993) and SMTP (465) with SSL/TLS. We handle day-to-day monitoring and maintenance.
What it does
Free @wein.dev address
Pick a username, pass the human check and you’re in.
1 GiB of storage
Every account gets 1 GiB of mail storage.
Webmail
Read, write, reply and forward right in the browser.
Works with mail apps
Connect mail apps on your phone or computer over IMAP and SMTP (SSL/TLS).
Sender authentication
Outgoing mail is DKIM-signed and backed by SPF and DMARC, reducing the risk of spoofing.
Built against abuse
Human verification, sign-up rate limits and daily sending caps keep the service clean and reliable.
Project details
- Our role
- Built the mail system and the sign-up service, and run it day to day.
- Platforms
- Web · IMAP / SMTP mail apps
- Stack
- Stalwart
- Roundcube
- Python
- Docker
- Nginx
- Cloudflare Turnstile
- IMAP / SMTP
- Links
- Visit site(opens in a new window)mail.wein.dev
- First release
- 2026
Let's build the next Wein Mail.
From first sketch to running in production — we build your product to the same standard as our own.