zyGrib

I want to have the grib data by asking per email.
I send this:

area: 4N127E 18N115E
resol: 1
days: 7
hours: 6
waves: WW3-GLOBAL
meteo: GFS
WIND WVSIG WVWCAP CLOUD PRESS PRECIP

the mail who comes back says: Missing grib area.

Even when I take the data from the explaining side of zygrib; area: 45N2W 47N0E

the same.

What do I wrong?

Thanks