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About

Secure email for the world. Because everyone has the right to communicate privately. Flow is the most secure email solution for traditional email—compatible with most email clients. Volcano—our free, open source mail client—takes full advantage of the Dark Internet Mail Environment. Magma is our open source server for the Dark Internet Mail Environment—perfect if you need to host your own secure email. We're pioneers in encrypted email who believe all people have the right to private and secure communication. By establishing secure, end-to-end encryption standards and technologies, we're revolutionizing how the world communicates and protects its digital privacy.

About

SuperMailOS is managed business email on your own domain for small teams. You bring your domain; SuperMailOS runs the mail server and handles deliverability — SPF, DKIM, DMARC, IP reputation, and warmup — so your email lands in the inbox, not the spam folder. Setup takes minutes: verify your domain with one-click DNS on Cloudflare, DigitalOcean, and other providers (or guided copy-paste on any registrar), invite your team, and start sending. Every person gets a real mailbox; aliases like hello@ and support@ are unlimited and free. Webmail is as simple as Gmail — threads, instant search, keyboard shortcuts, labels, dark mode — plus IMAP and SMTP for any mail app, and a live deliverability dashboard showing your mail landing. Flat pricing per mailbox: Pro $3/mailbox/month annually (10 GB, 3 domains), Business $5 (30 GB, unlimited domains), custom at 50+. 14-day free trial, no credit card.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Companies or individuals who want a secure/encrypted email service and/or client

Audience

Small and medium businesses, startups, agencies, and freelancers who want professional email on their own domain without running a mail server or managing DNS and deliverability themselves.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$3/month per mailbox
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 1.0 / 5
ease 4.0 / 5
features 2.0 / 5
design 2.5 / 5
support 1.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • It works. Yep put your details in and your phone or mail client will pick up emails. That’s it I’m afraid.
  • The idea of secure e-mail with a customizable domain had me sold, but the support isn't there to make it worthwhile.

Cons

  • Despite supporting them from the very start all those years back I got a nice email to say “pay up”. Problem is that this service doesn’t really offer anything free email services do. Sure the idea and privacy is good, but not worth paying for. What’s worse is that I asked about this. No response. Nothing. Just another auto reminder 3 days before.
  • Quick responses to support questions prior to purchase, non-existent communication post purchase. E-mails were read by support but never responded to. Not very professional.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Lavabit
Founded: 2004
United States
lavabit.com

Company Information

SuperMailOS
Founded: 2026
supermailos.com

Alternatives

Proton Mail

Proton Mail

Proton AG

Alternatives

Intermedia Exchange Email

Intermedia Exchange Email

Intermedia Cloud Communications

Categories

Email Hosting Supported
Email Management Supported
Email Security Supported
Encryption Supported

Categories

Email Hosting Supported

Email Security Features

Anti Spam Not Supported
Anti Virus Not Supported
Email Attachment Protection Not Supported
Encryption Supported
Policy Management Not Supported
Quarantine Not Supported
Reporting/Analytics Not Supported
Whitelisting / Blacklisting Not Supported

Encryption Features

Central Policy Enforcement Not Supported
Drag & Drop UI Not Supported
Email Encryption Supported
Encryption Key Management Not Supported
Endpoint Encryption Not Supported
File Compression Not Supported
File Encryption Not Supported
Full Disk Encryption Not Supported
Public Key Cryptography Not Supported
Tokenization / Data Masking Not Supported

Integrations

No info available.

Integrations

No info available.
Claim Lavabit and update features and information
Claim Lavabit and update features and information
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