Block files larger than 8 MB
Set proxy options profile to block files larger than 8 MB
1. Go to Policy & Objects > Policy > Proxy Options.
2. Edit the default or select Create New to add a new one.
3. Scroll down to the common Options Section and place a check in the box next to BlockOversized File/Email
4. The sub line Threshold (MB) will appear with a value field. Enter 8.
5. Select OK or Apply.
The proxy options profile is configured, but to block files, you must select it in the firewall policies handling the traffic that contains the files you want blocked.