Business email and collaboration,
self-hosted on your terms.
Whitemail is a self-hosted mail server and collaboration platform — secure email, calendars, contacts and mobile synchronization on infrastructure you control, with no per-seat licensing.
Inbox
A complete email and collaboration suite for business
Whitemail consolidates email and collaboration into a single, secure platform — enabling your organization to standardize on one solution and reduce operational overhead.
Email & collaboration, together
Send and organize email, share calendars, manage contacts, and keep files in one place. Everything works together so nothing falls through the cracks.
Security you don't have to think about
Spam and viruses are filtered before they reach your team, every message is encrypted in transit, and your domain stays protected from spoofing — all switched on by default.
Work from any device
Beautiful webmail in the browser, plus seamless sync to phones and tablets over ActiveSync — your mail, calendar and contacts always in step.
Your data stays yours
Host Whitemail entirely on your own infrastructure, on-premises. No third party mines your mail, and you decide exactly where your data lives.
Fits your organization
Sign in with the accounts you already have. Whitemail connects to your directory so onboarding and offboarding stay effortless.
Simple to administer
One clean console to manage domains, mailboxes and policies — with clear insight into how your mail platform is performing.
Enterprise-grade reliability, without vendor lock-in
The dependability organizations expect from a hosted suite, delivered on terms that keep you in control of cost, data and availability.
Always on
Every part of the platform is built with a backup ready to take over, so an outage on one server never becomes an outage for your team.
Scales with you
Start with a few hundred mailboxes and grow to tens of thousands. Add capacity as you go — no forklift upgrades, no migrations.
You stay in control
Own your infrastructure and your data. Meet residency and compliance requirements without bending your policies to fit a vendor.
Move with confidence
Our team migrates your existing mail with zero downtime and stays with you through go-live, so the switch is a non-event for users.
Compatible with the email clients and devices you already use
Whitemail supports every open standard — IMAP, SMTP, CalDAV, CardDAV and ActiveSync — so users can continue with their preferred client with no retraining required.
Desktop clients
Outlook, Thunderbird and Apple Mail connect over standard IMAP, SMTP and Exchange sync.
Phones & tablets
Native push email, calendar and contacts on iOS and Android via ActiveSync.
Modern webmail
A fast, clean browser experience for email, calendar and contacts — nothing to install.
Calendars & contacts
Open CalDAV and CardDAV keep schedules and address books in sync everywhere.
A complete platform, not a starting point
No hidden add-ons or upsells for the essentials. The capabilities your organization depends on are part of Whitemail from day one.
Business email
Reliable send, receive and routing built to handle high volume without missing a message.
Shared calendars
See availability, book meetings and share team schedules across the whole organization.
Contacts & directory
A company-wide address book that stays current and syncs to every device automatically.
Anti-spam & anti-virus
Multi-layered filtering keeps junk, phishing and malware out of your users' inboxes.
Encryption everywhere
TLS on every connection plus DKIM, SPF and DMARC to protect your domain's reputation.
Mobile sync
Push email, calendar and contacts to iOS and Android with no extra apps to manage.
Admin console
Manage domains, mailboxes, quotas and policies from one straightforward, secure dashboard.
Migration & onboarding
Bring mail over from Exchange, Microsoft 365, Google Workspace or any IMAP source.
Security and privacy, by design
Whitemail is secure by design and private by default, helping your organization maintain compliance and retain full control of its communications.
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Private by default
Your mail never leaves infrastructure you control, and no one profiles your data to sell ads or train models.
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Compliance-ready
Keep data in the region you choose and meet residency, retention and audit requirements with confidence.
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Layered protection
Two-factor admin access, brute-force defense and inline threat filtering guard every entry point.
Two-factor admin sign-in
Every administrator, protected
Self-hosted, on-premises — always yours
Whitemail runs entirely on your own infrastructure. No managed cloud, no third-party servers — your mail never leaves your walls.
Your hardware
Deploy on your own servers or private datacenter — no external dependency.
- Runs on your infrastructure
- Deployment automation included
- Works fully offline / air-gapped
Your data
Every message stays inside your organization — nothing is sent to a vendor cloud.
- Complete data ownership
- No third-party access
- You control encryption keys
Your rules
Meet the strictest residency and compliance requirements without exception.
- Data residency by design
- Audit & retention on your terms
- Sovereign, regulated-ready
A license for every size of organization
From small teams to enterprise clusters — choose the tier that fits, and add ActiveSync and high-availability clustering as you grow.
Basic
Essential business email and collaboration for small teams and offices.
- Full email & collaboration suite
- Shared calendars & contacts
- Anti-spam & anti-virus
- ActiveSyncAdd-on
Professional
More capacity and administration for growing organizations.
- Everything in Basic
- Directory & 2FA admin
- Priority email support
- ActiveSyncAdd-on
Premier
High-scale email with reliability options for the whole organization.
- Everything in Professional
- Capacity planning & SLAs
- ActiveSyncAdd-on
- Cluster HAAdd-on
Enterprise
Unlimited scale for large and regulated organizations.
- Everything in Premier
- ActiveSync included
- Cluster high availability included
- 24/7 support & migration
Questions, answered
Everything you need to know about Whitemail. Can't find what you're looking for? Talk to sales.
How does the license user count work?
What are the ActiveSync and Cluster add-ons?
Can I run Whitemail on my own servers?
Which email clients and devices are supported?
How does migration work — will there be downtime?
Is my organization's data private?
Is there a free trial, and what support is included?
Take control of your email infrastructure
Discover how your organization can migrate to a private, self-hosted email and collaboration platform — with dependable reliability and dedicated support throughout.