Symproxy - expression filter version 3

Within Expression Filtering version 3 with Symproxy, a user can select a phrase (or phrases) to log, warn about or block before the message is sent.


Configure Expression Filtering version 3 settings by following the steps below:


1. In Symphony, click Settings in the upper right-hand corner, then click General (Figure 1):



 Figure 1 Settings/General


2. Click Go to AC Portal at the bottom of the screen (Figure 2):



Figure 2 Go To AC Portal
Note: Alternatively, navigate to as an administrator (where companyabc is the name of your pod)


3. Navigate to Expression Filters (V3) (Figure 3):



Figure 3 Expression Filters (V3)


4. From here, internal admins can configure several different settings:


  • Message content
  • File content
  • Scope

When message content is set to Log event, users can still directly send a message with content issues, but a record of this message will be logged in the audit. 


When message content is set to Warn user before sending, the following warning will be displayed for messages sent with content issues (Figure 4):



Figure 4 Warning


The user can ignore this warning and continue to send the message.


When message content is set as Block user from sending, the following warning will be displayed for messages sent with content issues (Figure 5):



Figure 5 Warning


The user will not be able to send the message and must edit or remove the message.


Users can limit the filtering scan to the message only and specify the types of attached files to include.


Finally, users can define the scope of the scan to be internal only, external only or both external and internal is required (Figure 6):



Figure 6 Scope


Users can refer to the Expression Filtering v3 section in the Admin Guide for additional information.


For assistance with Expression filter version 3, please contact Symphony Support at