@Kelly_Carson I’m not sure I understand the underlying intention of the filter you are using.
Based on the expression alone, here’s the logic that the expression implements: if the text stored in [Email Address] contains the text “value_1”, return true. Otherwise, return false.
For instance, if the text stored in [Email Address] is “value_123”, then it will pass the filter. However, if the text is “value_”, it will fail the filter.
Is this the logic that you want to implement?