Ah it's painful!
kotirano,"inagaki"san,kara,henjino,"mail"ga,kimasita.
I received a reply mail from Inagaki-san who (works/lives) here.
NEW,yorimo,OLDni,kyoumiga,arusoudesu.
He (or she) says he is more interested in old ones than in new ones.
mouitido,watasikara,mailsitakara,henjiwo mattetekudasai.
I sent another mail myself, so please wait for him to reply again.
pls.imaha,kaisyadesu.mada,nareteinainode sukosi,taihendesu.
PS (pls is probably supposed to be ps) At the moment I am at work. I'm still getting used to it so it's pretty tough.
deha,mata
OK, see you later.
and how to say " up to you " in japanese
Maybe "jibun no tsugou ni yotte kimete kudasai" ? (please decide based on your own situation)