How can I make a Gmail filter to respond to any messages with attachments that have no filetype?
filetype:none doesn't work for me, because it searches for files with extension .none.
-
Is filetype even an available search option?– ComputerLocusAug 15, 2014 at 19:03
-
Have you tried -filetype? (just a minus before "filetype")– user13779Aug 15, 2014 at 20:45
Add a comment
|