01
Nothing reinvented
Postfix, Dovecot and Rspamd handle the mail. Rewriting IMAP would have taken years and produced something worse than what already exists.
Email on a domain you own
An address that is actually yours.
A real mailbox on your own domain — filtered, authenticated, and yours to keep. Use standard email everywhere, or choose Private when a mailbox needs stronger privacy.
What you get
Email infrastructure, not another inbox.
Real protocols, DNS that configures itself, an API the product is built on, and a way out. Most providers manage one or two.
Your domain, configured for you
Point a domain here and the records write themselves — MX, SPF, DKIM and DMARC, verified per domain rather than once per account. Connect Cloudflare and authorize once, or take them and add them by hand.
MXSPFDKIMDMARCReal mailboxes, not redirects
Dovecot storage behind standard IMAP and SMTP, so every client you have already configured just works. Not forwarding, and not an alias pointing somewhere else.
mx1.ruber.me:993mx1.ruber.me:465Aliases into one mailbox
Every address a small team needs, landing in one inbox. Every plan includes extra addresses, so another address is not another subscription.
billing@support@hello@An API that is the product
Create mailboxes, read messages and send over REST. Signed webhooks push events to you, with a delivery log you can inspect.
POST /v1/mailboxesPOST /v1/aliasesPOST /v1/messages/send
Security
What actually protects your mail.
Two things we do that most providers leave to you, and one thing we will not pretend about.
Authenticated in both directions
MX, SPF, DKIM and DMARC are written and verified for you, then enforced on the way in and on the way out. Mail claiming to be from your domain has to prove it.
Scored before it reaches you
Every inbound message is scored by Rspamd before delivery — sender reputation, phishing heuristics and authentication results all feed that score. Outbound is checked too.
You decide what Ruber can see
Smart keeps message content available to the mail plane so IMAP, search, the API and integrations work. Private is being built to encrypt content for the user and to enable E2EE between Ruber mailboxes. Neither hides metadata: sender, recipient and timestamp stay visible because SMTP needs them.
Compare Smart and Private
Mailbox modes
Your mailbox. Your choice.
Not every inbox has the same job. Ruber gives you the choice between full email compatibility and a mailbox designed to reveal as little as possible.
Smart
Everything email can do.
- IMAP + SMTP
- Any mail client
- Full-text search
- REST API
- Integrations
- Server-side filters
- Spam learning
- AI features
The mail plane can process message contents, so standard protocols, search, automation and integrations work normally. Readable by us, and not zero-access.
Best for support, sales, operations and everyday mail.
Private
As little access as possible.
- Zero-access storage
- Ruber ↔ Ruber E2EE
- Encrypted subjects
- Encrypted bodies
- Encrypted attachments
- Client-side decryption
- Recovery key
- Verified sender
Message contents are encrypted for the user instead of being available to the mail plane. E2EE applies between Ruber mailboxes; mail arriving from outside crossed the internet as ordinary SMTP first.
Best for sensitive personal, executive, legal and confidential mail.
Privacy has real trade-offs. On Private, server-side search, AI and integrations cannot read message contents, and third-party IMAP clients cannot transparently decrypt them. We show you what changes and let you decide.
See the full comparisonSame domain. Different needs.
Mode is set per mailbox, so each address can match what it actually does — the shared inbox stays searchable while the one that carries contracts does not have to be.
acme.com
support@acme.comSmartsales@acme.comSmartceo@acme.comPrivatelegal@acme.comPrivate
Mail apps
You are not required to use ours.
Smart mailboxes use standard IMAP and SMTP, so the client you already have this open in works — no bridge, no plugin, no proprietary protocol between you and your own mail. Our own apps are one more client, not the price of entry.
Private mailboxes are the exception: decrypting protected content needs the Ruber web client, which holds the key. Any IMAP client can still reach the mailbox and see the messages are there — it just cannot read them.
- Apple MailmacOS, iOS
- Microsoft OutlookWindows, macOS
- ThunderbirdDesktop, Android
- Gmail appAndroid, iOS
- SparkmacOS, iOS, Android
- eM ClientWindows, macOS
- Canary MailmacOS, iOS
- K-9 MailAndroid
What you type in
- IMAP
mx1.ruber.me:993 - SMTP
mx1.ruber.me:465 - MX
mx1.ruber.me
- macOS, Windows, Linux
- iOS and Android
- Anything else that speaks IMAP
Why teams move their mail here
Your-cloud mail plane
Run the mail plane in your own cloud.
For companies that cannot hand customer mail to a third party — regulated industries, agencies running mail for clients, products that resell mailboxes under their own name.
Talk to usYour cloud
Runs in your AWS account or VPC
- Postfix
- Dovecot
- Rspamd
- Storage
Provisioning and telemetry cross. Message bodies do not.
Ruber control plane
Stays with us, fully managed
- Dashboard
- REST API
- Provisioning
- Billing
Your storage in your region, under your retention rules, with the whole surface white-labelled to your brand.
Before you ask
Questions worth asking.
The 8 that come up most. There are more behind the switch, grouped by what they are about.
Still deciding?
hello@ruber.me