sed -e 's/^Date:.*/Date:/' \
-e 's/^Resent-Date:.*/Resent-Date:/' \
-e 's/^Message-ID:.*/Message-ID:/' "$actual" > "$actual".nodate
sed -e 's/^Date:.*/Date:/' \
-e 's/^Resent-Date:.*/Resent-Date:/' \
-e 's/^Message-ID:.*/Message-ID:/' "$actual" > "$actual".nodate