Outgoing emails through Outlook are extremely slow when large Excel files are attached

Products

• Data Loss Prevention Endpoint Prevent

Issue/Introduction

When an endpoint workstation attempts to send an outgoing email through Outlook with a large Excel file attached, the user experiences a delay of 30-60 seconds.

n/a 

Environment

Symantec Data Loss Prevention Endpoint agent workstations (all versions) that are setup to monitor Outlook

 

Cause

A complex policy (with multiple rules) is causing the scanning of large attachments to take a substantially longer time than it would otherwise.

Resolution

Simplify policies that are used by these workstations to minimize the amount of separate rules in each policy. This will decrease the amount of time that the scanning will take.