Setup Security Domains & DNS Install profile on Mac Install profile on iPhone Compatible apps Switch to Cirrux Switch from Gmail Switch from Proton Switch from Microsoft Split delivery: Google Split delivery: M365 Google Sync Microsoft Sync IMAP import ICS import Workspaces Mailboxes Shared mailbox Signatures Calendar Drive Command-line (CLI)AI assistants (MCP)Single sign-on (OIDC)SCIM provisioning Encryption Deliverability Reliability & backups Billing & payments Introduction User profile Drive Calendar Tasks Contacts Documents Webhooks

Cirrux Workspace

Getting started

Setup
Security
Domains & DNS
Install profile on Mac
Install profile on iPhone
Compatible apps

Switch

Switch to Cirrux
Switch from Gmail
Switch from Proton
Switch from Microsoft
Split delivery: Google
Split delivery: M365

Import & Sync

Google Sync
Microsoft Sync
IMAP import
ICS import

Features

Workspaces
Mailboxes
Shared mailbox
Signatures
Calendar
Drive
Command-line (CLI)
AI assistants (MCP)

Identity

Single sign-on (OIDC)
SCIM provisioning

Trust & operations

Encryption
Deliverability
Reliability & backups
Billing & payments

Developer API

Introduction
User profile
Drive
Calendar
Tasks
Contacts
Documents
Webhooks

All compatible apps

GNOME Contacts

LinuxContacts

The default GNOME contacts app on Linux syncs your Cirrux contacts over CardDAV.

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