Use this option if you have a properly-formatted .xml file containing the expressions. You can generate the file by exporting the expressions from the Trend Micro Email Security administrator console.
A message appears, informing you if the import was successful.
Every customized expression is identified by its name field in the .xml file. This name is a unique internal name that does not display on the administrator console.
If the file contains a customized expression that already exists, Trend Micro Email Security overwrites the existing expression. If the file contains any predefined expression, Trend Micro Email Security skips the predefined expression while importing the remaining customized expressions.