Letter of Rec, help please

Hi guys, so the teacher I asked for my letter of rec just emailed me and told me she needs to mail the letter to Georgetown through snail mail. Do you know where the letter should be addressed, or if it doesn’t need to be mailed, how is it submitted?
Thanks so much

I posted the link, but it is being reviewed by CC.You can search “Teacher’s Report” on Georgetown’s application page in the search bar to find the link yourself however.