server-tools

To Create AutoVacuum Rules

Go to Settings -> Technical -> Email -> Message And Attachment Vacuum Rules

Name: Set the name of the rule
Type: Select type "Attachment"
Company: Select a Company
Retention Time: Set Retention Time in days
Filename Pattern: Set file name pattern (for example ".png")
Inherited Model: Set the Inherited Model (optional)
Model: Select the Model to apply the rule to
Model Filter Domain: Specify the domain for the model to select particular records only
Description: Add a description for the rule set (optional)

Name: Set the name of the rule
Type: Select type "Message"
Company: Select a Company
Retention Time: Set Retention Time in days
Message Type: Select the Message Type to apply the rule to:
- All: Apply to all messages
- Comment: Apply to comments
- System Notification: Apply to system notifications
- User Specific Notification: Apply to user specific notifications
Empty Subtype: Apply to messages with no subtype
Message Subtype: Press the "Add line" button and select the Chatter Message Subtype to apply the rule to
Model: Select the Model to apply the rule to
Message Filter Domain: Specify the domain for the model to select particular records only
Description: Add a description for the rule set (optional)

Note: The AutoVacuum Mails and Messages and AutoVacuum Attachments scheduled actions are created by default and need to be activated.

Go to Settings -> Technical -> Automation -> Scheduled Actions

Activate the scheduled actions needed (AutoVacuum Mails and Messages and/or AutoVacuum Attachments)
Go to Actions -> Unarchive or toggle the Active status of the scheduled action
Select a record and specify the frequency of the cron job if needed

Note: It is recommended to run it frequently and when the system is not very loaded. (For instance: once a day, during the night.)