Tagged subject lines may become garbled under certain condition

Products

• TouchDown
• Email Security.cloud

Issue/Introduction

Tagged subject lines may become garbled under one of the following conditions.

Condition 1

• The original subject contains one or more multi byte characters
• Data Protection policy "Tag Subject" action is applied

Condition 2

• The original subject is encoded as ISO-2022-JP and "B" encoding.
• Data Protection policy "Tag Subject" action is applied

 Condition 3

• "Use SPF" is enabled in "Dashboard > Services > Email Services > Anti-Spam > Detection Settings > Spoofed Sender Detection"
• The action of "Use SPF" is "Tag the subject line but allow mail through"
• The tag string contains one or more multi byte characters

Condition 4

• The tag string of "Subject line text" in "Email Impersonation Control Settings" contains both single byte and multi byte characters
• "Tag Subject" action is applied

Environment

Email Security.cloud

Resolution

Symantec is aware of this issue and will update this document when a solution becomes available. It is not necessary to log a support case on this issue. Please subscribe to this article to be notified of any updates.