How you install Mutt depends on several factors.
mkdir /work cd /work fetch ftp://ftp.mutt.org/mutt/mutt-1.4.1i.tar.gz tar xvzf mutt-1.4.1i.tar.gz cd mutt-1.4.1i ./configure make make install
pkg_add ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/4.8-RELEASE/packages/mail/mutt-1.4.1.tgz
cd /usr/ports/mail/mutt make install
mkdir /work cd /work curl -o mutt-1.4.1i.tar.gz ftp://ftp.mutt.org/mutt/mutt-1.4.1i.tar.gz tar xvzf mutt-1.4.1i.tar.gz cd mutt-1.4.1i ./configure make make install
mkdir /work cd /work fetch ftp://ftp.mutt.org/mutt/mutt-1.4.1i.tar.gz tar xvzf mutt-1.4.1i.tar.gz cd mutt-1.4.1i ./configure make make install
pkg_add ftp://ftp.openbsd.org/pub/OpenBSD/3.3/packages/i386/mutt-1.4.1i.tgz
cd /usr/ports/mail/mutt make install
mkdir /work cd /work curl -o mutt-1.4.1i.tar.gz ftp://ftp.mutt.org/mutt/mutt-1.4.1i.tar.gz tar xvzf mutt-1.4.1i.tar.gz cd mutt-1.4.1i ./configure make make install
cd /usr/pkgsrc/mail/mutt make install
mkdir /work cd /work curl -o mutt-1.4.1i.tar.gz ftp://ftp.mutt.org/mutt/mutt-1.4.1i.tar.gz tar xvzf mutt-1.4.1i.tar.gz cd mutt-1.4.1i ./configure make make install