The Insert X-Header action adds an X-Header to
the message header before sending a message to the intended recipients. An X-Header
consists of a name field and a body field, which can be customized according to your
requirements.
Insert X-Header is one of the "Modify" class of actions.
Procedure
- Select Insert X-Header from the Modify section.
- Type the X-Header name and value.
Note
Do not use or start your X-Header name (case-insensitive) with the following since they are reserved for Cloud Email Gateway Protection:-
X-TM
-
X-MT
The reserved X-Headers might be adjusted dynamically if necessary. -