If an email matches a filter because of a matching "Reply-To" header, that filter does not appear in the button's dropdown list of filters. This could be related to [TB issue 1683025](https://bugzilla.mozilla.org/show_bug.cgi?id=1683025).
If an email matches a filter because of a matching "Reply-To" header, that filter does not appear in the button's dropdown list of filters.
This could be related to TB issue 1683025.