Cisco Cisco Email Security Appliance C160 Mode D'Emploi
6-104
Cisco IronPort AsyncOS 7.6 for Email Advanced Configuration Guide
OL-25137-01
Chapter 6 Using Message Filters to Enforce Email Policies
Note
By default, AsyncOS automatically detects mail loops and will drop messages after 100 loops.
else {insert-header("X-ExtLoopCount3", "from $RemoteIP");}}
else {insert-header("X-ExtLoopCount2", "from $RemoteIP");}}
else {insert-header("X-ExtLoop1", "1"); }