This article discusses the purpose of scanexception in mail headers on IMSS and IMSVA like in the following example:
The X-imss-reprocess headers are used by IMSVA and IMSS to keep track of what security policy was responsible for quarantining an email.
"12" indicates the version number of Scanexception which is used to track if there are changes in the security policy settings from the time IMSS/IMSVA quarantined the email to the time the admin tried to release the email.
If there are no changes, IMSS/IMSVA will skip that specific security policy.
Below are the X-imss-reprocess headers:
- X-imss-reprocess-rules - This shows the identifier and the version of the rule that queued the message.
- X-imss-reprocess-type - This shows the type of the action (quarantine, notification, etc.).
For more information on the specific exception triggered by the mail, check the log.imss file.