If you enable Time-of-Click Protection, IMSVA
rewrites URLs in email messages for further analysis. Trend Micro analyzes those URLs at the time of click
and will block them if they are malicious to protect you.
Procedure
Go to Policy → Time-of-Click Protection.
The Time-of-Click Protection screen appears.
Under Actions, do the following:
Dangerous: Select an action (
Allow, Warn or
Block) to take on dangerous URLs. The default
value is Block.
Dangerous URLs are verified to be fraudulent or known sources of
threats.
Highly Suspicious: Select an action (
Allow, Warn or
Block) to take on highly suspicious URLs. The
default value is Block.
Highly suspicious URLs are suspected to be fraudulent or possible sources
of threats.
Suspicious: Select an action (
Allow, Warn or
Block) to take on suspicious URLs. The
default value is Allow.
Suspicious URLs are associated with spam or possibly compromised.
Untested: Select an action (
Allow, Warn or
Block) to take on untested URLs. The default
value is Allow.
While Trend Micro actively tests URLs for
safety, users may encounter untested pages when visiting new or less
popular websites. Blocking access to untested pages can improve safety
but can also prevent access to safe pages.