if it's greenwood cutting. important thing from what i have heard is keeping moisture on the top so they don't dry out.
with my green cuttings, i have put them into a bin and keep it closed most of the time. so far so good. green cuttings, if your mother is sending it in a ziplock back with moist paper towel or newpaper in it, will more than likely start root initial while it's getting to you.
treat them like hardwood cutting, just make sure the top doesn't dry out.
greenwood cuttings move very fast. i have full set of leaves on the ones i started about week and a half ago. usually when i see leaves coming out, root will following soon.
pete