Release Notes CGS 7.0.12

Collax Groupware Suite

Installation Notes

Update Instructions

To install this update please follow the following steps:


  1. It is highly recommended to backup of all server data with the Collax backup system before proceeding. Check that the backup was successful before proceeding with the update (this can be done within the backup information email).
  2. In the administration interface go to System → System Operation → Software → System Update and press Get Package List. This will download the listed update packages. If successful the message Done! will be displayed on the screen.
  3. Click Get Packages to download the update packages.
  4. Click Install. This installs the update. The end of this process is indicated by the message Done!.
  5. A new kernel will now be installed. The system will reboot automatically after installing the update. An appropriate note will be shown if the update process is completed.

New in this Version

Kopano Groupware: Kopano Core 8.3.3

With this Collax software update the new version 8.3.3 of Kopano Core is going to be installed. Please find details here:

Kopano Core 8.3.3 Release

Kopano Groupware: New version of Z-Push

With this Collax software update, Z-Push 2.3.7 is going to be installed. More information on:

Z-Push 2.3.7 Release

E-Mail: SMTP Submission Agent

The dialog under Mail and Messaging → Mail → SMTP Reception is used for configuring the various settings concerning the SMTP reception. With this Collax software update the SMTP Submission Port 587 is beeing added to accept e-mail for validated users. The user has to autheticate to use the service.

E-Mail: Delivery Status Notification

The dialog Mail and Messaging → Mail → SMTP Reception contains the basic settings for the transmission of e-mails in general. With this Collax software update Delivery Status Notifications (DSN) are configurable. DSNs are beeing sent to the sender of an email if the e-mail couldn’t be delivered to its recipient. Delayed message warning time and the maximum time to keep messages in the queue can be configured now.

GUI: Clone more objects

With this release a framework to clone objects is introduced. It enables the user to generate a clone method. This method copies the given object. Thereby the user can clone external mailboxes or header filters and a bunch of other objects. You can use the right mouse and the action “clone” to make a copy of the object.

Misc: Important System Components

This update will also install/update the following important system components:

  • phpmyadmin 4.7.3
  • curl 7.55
  • ghostscript 9.20
  • tcpdump 4.7.3
  • clamav 0.99.2

Issues Fixed in this Version

E-Mail: Postmaster Notification for large e-mails

The maximum size of an individual e-mail can be defined in the dialogue “SMTP reception”. When retrieving e-mail from external mailboxes, the postmaster notification didn’t work properly when exceeding the maximum message size. Within this release the postmaster notification is going to be fiexd.

E-Mail: Default certificate for SMTP reception

To use TLS for incoming smtp connections, a certificate must first be generated or imported for the SMTP service. Due to a validation error, the form with the default certificate could not be saved. This is going to be fixed within this release.

E-Mail: correct date in mailqueue display

All incoming e-mail is buffered in the mail queue. The “Received” column displays that time at which the system received the e-mail. Due to a conversion error, the time was displayed wrong. This is going to be fixed within this release.

Authentication: LDAP Server stability

In this update many improvements will be implemented for the integration of openldap.


Security: Security warning - Z-Push ActiveSync Clients

A security hole in our implementation of Z-Push into the Collax authentication system may allow unauthorized access to Kopano’s email accounts. This vulnerability affects all Collax installations using Kopano and the Collax version 7 Z-Push module. With the release version 7.0.14 the bug has been fixed. The update includes a current z-push and a new z-push web services package as well as a system library. The vulnerability is classified as critical. Please update all Collax server systems accordingly on which Kopano and Z-Push are used.

E-Mail: Increased required space when using IMAP and full-text index

The option “Generate full-text index” in the options of the dialog “Mail and Messaging -> Mail Storage -> IMAP and POP3” generates a full-text index of the local IMAP folders which accelerates the search within the IMAP folders and e-mails. While activated, the system could use up to 20% more space compared to the former release (also with activated index) for the service cyrus. Please check the space requirements of the service cyrus in advance. Under the dialog “Status -> System -> Statistics” the graph “filesystem/data” shows further details.

System Management: Monitoring Media Erros on LSI Controllers

Within this update the active monitoring of media errors on LSI RAID-Controllers has been customized. Up to now a warning information for hard disks with a single media error has been issued, although the controller was able to handle those errors and correct them automatically. From now on the warning threshold is 100 errors.