You are unable to receive some Adobe PDF attachments that are being sent. The Mail Tracking logs show that the mail was "Deleted" and shows the following error code:
Scan Exception-Security Setting Violation with error code -71
HES/HES-Inbound Filtering has the following global limits:
- Total message size exceeds: 50 MB
- Total number of recipients exceeds: 1000 recipients
- Total number of embedded layers in compressed file exceeds: 20 layers
- Total decompressed size exceeds: 60 MB
The 60 MB capacity took effect on November 25, 2011.
- Total number of files in compressed file exceeds: 353 files
- Compress ratio limit exceeds: 100%
An Acrobat PDF file that has Microsoft Word 2013/2010/2007 property will be decompressed by the scanners and experience this issue.
>Click image to enlarge
To resolve the issue, do one of the following:
Option 1: Password-protect the PDF attachments to bypass the scanning of these files.
Option 2: If you are using the full version of HES, you can modify the action that HES may take on PDF attachments from "Reject" to "Bypass".
- Log in to the HES portal.
- Go to Inbound Protection > Policy and select the Malware rule.
- On the Rules column, select a rule to edit.
- On Edit Rule, select Actions on the left pane.
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Go to the Scan Limitations section, and then tick Compressed file contains a file with decompression ratio of more than 100 checkbox.
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- From the dropdown list, select Bypass this rule.
- Click Submit.
