In claws-mail 3.9.0 the quicksearch is broken. See this redhat bug: https://bugzilla.redhat.com/show_bug.cgi?id=882897 It is known and fixed upstream, but as this is pretty annoying and hurts me (and probably others) every day, I'd prefer if we could patch this. According to the redhat-bug, these two upstream commits should do: http://www.claws-mail.org/tracker/getpatchset.php?ver=3.9.0cvs8 http://www.claws-mail.org/tracker/getpatchset.php?ver=3.9.0cvs9
Fixed in -r1, thanks for the report.