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Cisco Bug: CSCvs05692 - Safe Unsubscribe may not add the banner during high flow of graymail scanned items

Last Modified

Jun 12, 2020

Products (1)

  • Cisco Email Security Appliance

Known Affected Releases

12.1-087 12.5.0-066

Description (partial)

Symptom:
The ESA is configured to use Safe Unsubscribe functionality and emails are being scanned and marked accordingly, however the ESA is not properly inserting the banner for the safe unsubscribe link.

On the mail_logs/message tracking we can see the rewrite of the URL:
Message 19193948 rewritten as new message 19194137 by edit-body-text Safe Unsubscribe filter

But not the heading being added (this is the banner) and then the email delivered.

On normal circumstances we should see:
Message 19197779 rewritten as new message 19199751 by edit-body-text Safe Unsubscribe filter
 Message 19199751 rewritten as new message 19199761 by add-heading Heading Stamping filter

Conditions:
Safe unsubscribe is enabled on the ESA and higher volumes of emails marked to be actioned by Safe unsubscribe.
When the email flows are low, the safe unsubscribe feature will function as expected.
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