When you configure a content profile (see Configuring scan options), you can choose to scan for adult images in the email body and attachments.
- Go to Security > Other > Adult Image Analysis.
- Enable the analysis.
- Adjust the rating sensitivity according to your requirements. The higher the number, the higher the sensitivity. The default setting is 75 and the valid range is 0-100.
- Specify the minimum and maximum image size to scan.
Adjust the rating sensitivity properly to avoid false positives and false negatives.
Enabling this feature affects the FortiMail performance. And by default, this feature is enabled.