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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.
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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.
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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
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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
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Audience
Companies or individuals who want a secure/encrypted email service and/or client
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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.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Pricing
$3/month per mailbox
Free Version
Not Supported
Free Trial
Supported
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Reviews/
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Reviews/
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Pros & Cons from Real UsersPros
Cons
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationLavabit
Founded: 2004
United States
lavabit.com
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Company InformationSuperMailOS
Founded: 2026
supermailos.com
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Alternatives |
Alternatives |
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Categories |
Categories |
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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
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Integrations
No info available.
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Integrations
No info available.
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