I receive a very particular newsletter from an association A registered on a website W (that is used by many associations), and the emails fields are not great: the From just contains the generic website's W's email, while A is only mentioned in the Reply-to field.

However, the Filter panel Conditions doesn't allow me to define a Reply-to pattern, only From, To, etc.

I don't want to filter all the emails from W since it would cover all the other, unrelated associations. Just emails from A.