Conbool Mail

Business email with an app. Servers in Germany.

Mailboxes on your own domain with email, calendar and contacts. Plus the app for Windows, Mac and Linux, coming soon to iPhone and Android.

  • Own app for Windows, Mac and Linux
  • Exchange ActiveSync in every plan
  • Built-in protection
  • Also in your own data centre

Already a customer? Go to webmail

InboxProtection active
Inbox3ArchiveJunk email2
PUPurchasingQuote 2026-118, question on quantity
PTProject teamInvitation: project meeting on Thursday
ACAccountsInvoice September, customer number 40211
Storage18 of 100 GB
Suspicious messages go to junk email

As an app for Windows, Mac and Linux

Works with

  • Conbool Mail app
  • Outlook
  • Apple Mail
  • Thunderbird
  • iPhone
  • Android
  • IMAP
  • SMTP
  • Exchange ActiveSync
  • CalDAV
  • CardDAV
  • and more

Overview

One mailbox, the same everywhere.

One app for Windows, Mac and Linux.

Mail, calendar and contacts in one app. It works offline too and tells you about new mail.

  • Notifications for new mail
  • S/MIME and PGP on the device
  • Your default mail app
  • Windows
  • Mac
  • Linux
Download the app

The app

The app for your mailbox.

Built for Conbool Mail, with everything a business mail client needs.

Available today

  • WindowsVersion 1.0.14
  • MacVersion 1.0.14
  • LinuxVersion 1.0.14
  • iPhoneSoon
  • AndroidSoon
Download the app
  • Notifications for new mail

    On your phone even when the app is closed. Sender and subject arrive encrypted.

  • App lock on your phone

    With Face ID, fingerprint or device passcode. The app switcher keeps your content covered.

  • S/MIME and PGP on the device

    Sign, encrypt and verify right in the app, no add-on needed.

  • Works offline

    Loaded mail stays readable and searchable. New mail waits in the outbox.

  • Your default mail app

    Opens mailto links plus .eml, .msg, .ics and .vcf files. On Windows also “Send to”.

  • Several accounts

    More mailboxes in one app, including other providers via IMAP.

Plans

Three plans for every mailbox.

Go, One and Two are modelled on Exchange Online Kiosk, Plan 1 and Plan 2, but are not the same: Two has 100 GB of archive storage per mailbox and no auto-expanding archive. Each mailbox gets its own plan, more storage comes in packs.

Without a mail client

Go

For workplaces without their own computer

Mailbox
5 GB
Online archive
Not included
  • Webmail with calendar and contacts
  • Smartphone through Exchange ActiveSync
  • Built-in protection against malware and spam
  • Managed in the same portal as all mailboxes
Recommended

Mailbox

One

The mailbox for every workplace

Mailbox
50 GB
Online archive
50 GB
  • Outlook, Apple Mail and Thunderbird
  • Smartphone through Exchange ActiveSync
  • Webmail with calendar and contacts
  • Built-in protection against malware and spam

Mailbox with archiving

Two

Everything in One, plus

Mailbox
100 GB
Online archive
100 GB
  • Immutable email archiving
  • Dedicated archive storage with 100 GB per mailbox
  • Archive storage pooled across your organisation
  • Shared mailboxes up to 200 GB with Two

Add-on

50 GB storage pack

For individual mailboxes, freely assignable, without changing the plan.

Pay monthly or yearly, as you prefer.

Shared mailboxes up to 50 GB, distribution lists, rooms and equipment need no licence of their own. We prepare a quote for your mailboxes.

Request a quote

Built-in protection

Checked before it reaches the mailbox.

Every inbound message passes through the Conbool gateway. Built-in protection is part of every plan and applies from the first mailbox.

More protection with MailGuard

Quarantine with release, click-time link protection, attachment rules and protection against spoofed senders come with MailGuard as a separate module.

Explore MailGuard
Inbound messageClean
  1. Malware
  2. Spam
  3. SPF, DKIM, DMARC
  4. Link reputation
Inbox
Junk email
Rejected

Administration

Mailboxes, licences and access in one place.

Everything in the portal, without scripts and without PowerShell.

  • Up to 500 mailboxes from a CSV fileOne at a time in the wizard, or as a list. Each person receives a setup link.
  • Assign plans by groupGroup rules assign new members their plan, with no manual work.
  • Message tracingFor every message you see what was checked and where it was delivered.
  • Control accessDelegates, aliases and protocols for each mailbox. Block sign-in and end sessions with one click.
  • Storage at a glanceReports for each mailbox, and deleted mailboxes can be restored.
Mailboxes4 of 128
  • management@company.exampleTwo
  • sales.miller@company.exampleOne
  • warehouse.hall2@company.exampleGo
  • info@company.exampleShared

Migration

Three steps to Conbool Mail.

Connect the domain, create mailboxes, bring the content over. All in the portal.

  1. Connect your domain

    The portal lists the DNS records for your domain and checks each one.

  2. Create mailboxes

    One at a time in the wizard, or up to 500 at once from a CSV file.

  3. Bring your content

    Migration runs in the background and can be followed for each mailbox.

  • Microsoft 365
  • Google Workspace
  • IMAP
  • PST
How email migration works

Operation

With us in Germany or on your own premises.

The same mailbox, two operating models. In both cases your contracting party is Conbool GmbH in Hamburg.

Operated by Conbool

We operate the mailboxes. You manage users and licences in the portal.

  • Mailbox content and management data on servers in Germany
  • Continuous backup and a full backup every day
  • Data processing agreement covering every service provider involved

In your own data centre

Conbool Mail also runs on your own infrastructure and uses your Active Directory.

  • Sign-in with the accounts from your Active Directory
  • Webmail, mail clients and ActiveSync as in operation by Conbool
  • Second factor for access from outside
Replace Exchange Server

More about Conbool Mail

Every page about the mailbox.

Frequently asked questions about Conbool Mail

Is there a Conbool Mail app?

Yes, for Windows, Mac and Linux, and soon for iPhone and Android. It brings mail, calendar and contacts together, works offline and signs and encrypts with S/MIME and PGP. The download page shows which version is ready for your device.

Which mail clients work with Conbool Mail?

Any client that supports IMAP and SMTP, such as Outlook, Apple Mail and Thunderbird, plus the mail apps on iPhone and Android. Calendars and contacts sync via CalDAV and CardDAV, for example with iPhone, Mac and Thunderbird. Outlook for Windows does not support these two protocols out of the box. There, calendar and contacts are available in webmail and in the Conbool Mail app.

Does Conbool Mail support Exchange ActiveSync?

Yes, in every plan. Smartphones and tablets sync email, appointments and contacts through Exchange ActiveSync. The device finds its settings via Autodiscover.

How do our existing mailboxes move to Conbool Mail?

Through migration in the portal: from Microsoft 365 with messages, calendars and contacts, from Google Workspace or any IMAP server, and from Outlook data files up to 60 GB each. Migration runs in the background.

Do shared mailboxes need a licence of their own?

Not up to 50 GB, and neither do distribution lists, rooms and equipment. Anyone working in a shared mailbox needs their own mailbox with a plan.

Are MailGuard and SecureMail included?

No. Every plan includes built-in protection against malware and spam. MailGuard, SecureMail, SignaturePRO and the other modules are booked separately. Two includes immutable email archiving.

Where is our data stored?

When Conbool operates the mailboxes, on servers in Germany, with data held in the EU. Your contracting party is Conbool GmbH. The DPA names every subprocessor and location, including those based outside the EU. In your own data centre, the data stays with you.

Does Conbool Mail also run in our own data centre?

Yes. Conbool Mail can be operated on your own infrastructure and signs users in through your Active Directory. Webmail, mail clients and ActiveSync are available there as well.

What happens to deleted messages?

Deleted or overwritten content stays recoverable for 30 days. Conbool restores it on request.

What does Conbool Mail cost?

Go, One and Two are billed per mailbox per month, additional storage in 50 GB packs. We quote prices on request for your mailboxes. Shared mailboxes up to 50 GB, distribution lists, rooms and equipment are free.