Retrieving emails

It is possible to add external accounts (GMail, Outlook, Yahoo, IMAP, etc…) to the platform. In this case, your emails will be downloaded in background, every time you logon on your account.

This is a one way synchronisation only, the remote accounts are not modified.


The credentials and the settings are stored on your box only, encrypted with AES 256 bits scheme. The description key is stored by the root account. The credentials are decrypted by the user account and kept in memory during the synchronisation process.

Behind the scene, the platform is using isync.

Whatever you access your account using the webmail or using an email client, the emails from other accounts will be downloaded transparently.

The folders hierarchy is reproduced on your server, with some adaptations for GMail, though.


  • The emails will be imported once only. The system is keeping a record of the emails indexes already imported.
  • Emails from external accounts are downloaded in the background, when you are checking your emails, from any client.
  • The imported emails are re-filtered using the Sieve filters you have specified,


Below is an example for one user named “andre”, with multiple external accounts:

- uid: andre
  cn: André Rodier
  first_name: André
  last_name: Rodier
  password: ioherin937aaf
    - andré
    - name: work
      type: imap
      user: arodier
      password: 'Imlirhf*62e3'
      max_messages: 10
    - name: zoho
      type: imap
      password: 'mt6wiu*VFkjv'
      max_messages: 10
      get_junk: true
    - name: gmail
      type: gmail
      password: bqlcmryyxswmvofw
      get_important: false
      get_junk: true
      get_trash: true
      max_messages: 10
    - name: yahoo
      type: ymail
      password: pkxzibnnzakbizvq
      get_junk: true
      get_trash: true
      max_messages: 10
    - name: outlook
      password: uqspxcsghssipmfw
      get_junk: true
      get_trash: true
      max_messages: 10

Details of the options

There are a few options to download emails detailled below.

Server name: “name”

The name option is used to keep track of your email synchronisation state. It is totally arbitrary, although it is better to keep a logic name. This is mandatory.

Specify the server type: “type”

The type option is mandatory, and represents some pre-recorded settings to import your email.

It can be for instance “gmail”, “”, “ymail” (Yahoo), or plain IMAP.

If you are using IMAP, you will have to specify the server address.

The import system will try SSL and TLS for connection.

Synchronise Junk emails too: “get_junk”

If you want to import and keep synchronised Junk/Spam emails too, set this option to true. It is set to false by default.

Synchronise Trash/Bin emails too: get_trash

If you do not want to import delete emails too, set this option to false. It is set to true by default.

Testing the synchronisation: “max_messages”

This option is useful if you want to test the import / synchronisation, and see how the folders will be synchronised. In the example above, the system downloads the last 10 emails, but will reproduce the entire folders hierarchy.

GMail Special cases

Google Mail (aka GMail) has some specific features, that make the import trickier. However, the system makes some choice. For instance, the folders hierarchy is reproduced, but without the ugly ‘[Google Mail]’ label.

Folder Destination
[Google Mail]/Sent Mail /Sent
[Google Mail]/Drafts /Draft
[Google Mail]/Archives /Archives
[Google Mail]/Bin /Trash
[Google Mail]/Spam /Junk
[Google Mail]/Chat Not synchronised.
[Google Mail]/Starred Not synchronised.
[Google Mail]/Important Optionally synchronised.

The “Starred” folder is a virtual folder that represents a view of your starred emails. The same behaviour will be added to this platform.

Since Google Mail has merged IMAP folders and labels, some emails will be imported multiple times, into multiple folders, if they have multiple labels. There is nothing to do - yet - about this, but it is better to import an email multiple times rather than loosing emails.

Important emails

As a corollary, there is an option, specific to GMail, to download the emails marked as “Important” in a dedicated folder, the option is called “get_important”, and set to true by default.

Get archives

This option is set to true by default. Set it to false if you do not want to download your entire email archives.


Be careful, some email providers will not let you download emails once archived, for instance Zoho.