SOGo is a fully supported and trusted groupware server with a focus on scalability and open standards.

SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV, as well as Microsoft ActiveSync.

SOGo offers multiple ways to access calendaring and messaging data. Your users can either use a web browser, Microsoft Outlook, Mozilla Thunderbird, Apple iCal, or a mobile device to access the same information.

Default settings

These settings are loaded by default when installing SOGo:

  appointment_send_emails: true
  vacation: true
  forward: true
  sieve_scripts: true
  first_day_of_week: 1 # 1 is Monday
  day_start_time: 9
  day_end_time: 17
  time_format: '%H:%M'
  refresh_view_check: every_minute
  auxiliary_accounts: false
  language: English
  enable_public_access: false
  password_change: true
  auxiliary_accounts: true
    active: false
    debug: true
Flag Role
appointment_send_emails Send emails when apointments are created.
vacation Activate vacation functionality in the web interface.
forward Activate automatic forward functionality in the web interface.
sieve_scripts Allow you to filter your emails using advanced server side filters.
first_day_of_week Set the first day of the week in the interface. Default is Monday, 1. Set it to 0 for Sunday.
day_start_time / day_end_time The working hours, in 24h notation.
time_format The format used to display the time. See the strftime function for format.
refresh_view_check The time interval to check for new emails.
auxiliary_accounts Allow you to retrieve emails from external accounts, directly from the web interface.
language The defaut language of the web interface¹
enable_public_access Allow public access to your calendars and address books, using a specific URL.
password_change Allow you to change your passwors from the web interface.


Possible values are defined in the SOGo installation guide


Some advanced features can be deployed along SOGo.

For now, there is one mail filter compatible with SOGo, that searches the addresses in the email received in your address books, and “tags” the messages accordingly. Coupled with Sieve filters, this allows you to set specific rules for contacts in your address books. For instance, one auto-reposonder for personal contacts, and one for professional ones.

Filter message by address book

When the email address from a received email is found in one or more of your address books, a new header is added to the email:

    dmarc=pass (policy=quarantine);
X-Spam-Status: No, score=0.01
X-AV-Checked: ClamSMTP
X-AddressBook: SOGo:Personal Address Book,SOGo:Professional


This feature is in testing phase and not activated by default; Any feedback is welcome.

Compatible clients

SOGo provides calendar and address books synchronisation with multiple devices. You can use any client compatible with these standards, on many platforms:

On Linux

On Windows

On Android

On MacOS / iOS