The details are the same as in old topic: http://forums.mozillazine.org/viewtopic ... &t=1633355It would seem that the Trash is being explicitly omitted from search results. Is there any way to modify this behavior?
My Thunderbird version is 52.4.0. The problem seems still there since at least 8 years..
Other mail systems, e.g. Gmail, have possibility to include messages from Trash to the Search results.
Also same topic: https://groups.google.com/forum/#!topic ... Ctv1nxbdoI