Jan Schneider wrote: >Works fine here. What OS do you have on the server? > >Try entering >echo String::lower('I'); >in the PHP Shell under Administration with the Turkish interface selected. > >What do you get? "i" or "ı"? > >Jan. > > > I got "i" Os which imp installed is "Redhat Enterprise AS 4 (i386)" my imap server is dovecot.