Configuring adult image analysis | FortiMail 6.4.6 | Fortinet Document Library

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Table of Contents

Email concepts and process workflow
- Email protocols
- Client-server connections in SMTP
- DNS role in email delivery
- How FortiMail processes email
- FortiMail operation modes
- FortiMail high availability modes
- FortiMail management methods
Setting up FortiMail system
- Connecting to the web UI or CLI
- Choosing the operation mode
- Running the Quick Start Wizard
- Connecting to FortiGuard services
- Gateway mode deployment
- Transparent mode deployment
- Server mode deployment
- Testing the installation
- Backing up the configuration
Using the dashboard
- Viewing the dashboard
- Using the CLI Console
Using FortiView
- Viewing mail statistics
- View threat statistics
- Viewing top user statistics
- Viewing current IP sessions
Monitoring the system
- Viewing log messages
- Managing the quarantines
- Managing the mail queue
- Viewing the greylist statuses
- Viewing sender, authentication and endpoint reputation
- Managing archived email
- Viewing generated reports
Centrally monitoring the HA cluster
- Viewing the cluster status
- Viewing HA cluster mail statistics
- Viewing HA cluster threat statistics
- Searching the HA cluster logs
Configuring system settings
- Configuring network settings
- Configuring administrator accounts and access profiles
- Configuring system time, options, and other system options
- Configuring mail settings
- Customizing GUI, replacement messages, email templates, SSO, and Security Fabric
- Configuring RAID
- Using high availability (HA)
- Managing certificates
- Using FortiSandbox antivirus inspection
- Configuring FortiGuard services
- System maintenance
Configuring domains and users
- Configuring protected domains
- Managing users
- Configuring user aliases
- Configuring address mappings
- Configuring IBE users
- Managing the address book (server mode only)
- Sharing calendars and address books (server mode only)
- Migrating email from other mail servers (server mode only)
Configuring policies
- What is a policy?
- How to use policies
- Controlling SMTP access and delivery
- Controlling email based on IP addresses
- Controlling email based on sender and recipient addresses
Configuring profiles
- Configuring session profiles
- Configuring antispam profiles and antispam action profiles
- Configuring antivirus profiles and antivirus action profiles
- Configuring content profiles and content action profiles
- Configuring resource profiles
- Workflow to enable and configure authentication of email users
- Configuring authentication profiles
- Configuring LDAP profiles
- Configuring dictionary profiles
- Configuring security profiles
- Configuring IP pools
- Configuring email, IP and GeoIP groups
- Configuring notification profiles
Configuring security settings
- Configuring the FortiGuard URL filter
- Configuring authentication reputation
- Configuring email quarantines and quarantine reports
- Configuring the block lists and safe lists
- Configuring greylisting
- Configuring bounce verification and tagging
- Configuring endpoint reputation
- Training and maintaining the Bayesian databases
- Adding file signatures
- Configuring action profile preferences
- Configuring adult image analysis
Configuring encryption settings
- Configuring IBE encryption
- Configuring certificate bindings
Configuring data loss prevention
- DLP configuration workflow
- Defining the sensitive data
- Configuring DLP rules
- Configuring DLP profiles
Archiving email
- Email archiving workflow
- Configuring email archiving accounts
- Configuring email archiving policies
- Configuring email archiving exemptions
Logs, reports and alerts
- About FortiMail logging
- Configuring logging
- Configuring report profiles and generating mail statistic reports
- Configuring alert email
Microsoft 365 threat remediation
- Microsoft 365 protection workflow
- Configuring Microsoft 365 accounts
- Configuring profiles
- Configuring scanning policies
- Monitoring log messages
Installing firmware
- Testing firmware before installing it
- Installing firmware
- Clean installing firmware
- Upgrading firmware on HA units
Best practices and fine tuning
- General security tuning
- System security tuning
- Network topology tuning
- High availability (HA) tuning
- SMTP connectivity tuning
- Antispam tuning
- Policy tuning
- System maintenance tips
- Performance tuning
Troubleshooting
- Establish a system baseline
- Define the problem
- Search for a known solution
- Create a troubleshooting plan
- Gather system information
- Troubleshoot hardware issues
- Troubleshoot GUI and CLI connection issues
- Troubleshoot FortiGuard connection issues
- Troubleshoot MTA issues
- Troubleshoot antispam issues
- Troubleshoot HA issues
- Troubleshoot resource issues
- Troubleshoot bootup issues
- Troubleshoot installation issues
- Contact Fortinet customer support for assistance
Setup for email users
- Training Bayesian databases
- Managing tagged spam
- Accessing the personal quarantine and webmail
- Sending email from an email client (gateway and transparent mode)
Appendix A: Supported RFCs
Appendix B: Maximum Values
Appendix C: Port Numbers
Appendix D: Wildcards and regular expressions
- Special characters with regular expressions and wildcards
- Case sensitivity
- Modifiers
- Word boundary
- Syntax
- Examples
Appendix E: Working with TLS/SSL
- About TLS/SSL
- How TLS/SSL works
- FortiMail support of TLS/SSL
- Troubleshooting FortiMail TLS issues
Appendix F: PKI Authentication
- Introduction to PKI authentication
- FortiMail PKI architecture
- Configuring PKI authentication on FortiMail
Change Log

Administration Guide

6.4.6

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Configuring adult image analysis

When you configure a content profile (see Configuring scan options), you can choose to scan for adult images in the email body and attachments.

To configure adult image analysis settings

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.

Caution

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.

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