i want to create a content filter with the "body-contains"-condition in combination with a regular expression. To specify it:
I want to check whether a string (disclaimer) is already added to the email. If not, i have to add the footer.
So to say: REGULAR EXPRESSION = does not contain "string"
But how does the regular expression look like?
<rule_data>REGULAR EXPRESSION (does not contain...)</rule_data>