Recommendation Letter Johns Hopkins?

Hi,
I am thinking of applying to Johns Hopkins University for Early decision, and I have two recommendations from my teachers already.
I want to submit one extra recommendation from my mentor, but there it is not possible to do so on common app because its only up to two recommendations.

Do I send my recommendation through email to johns hopkins? How can I get the letter to the university?

US Postal service will work fine

Would it be possible with email?

I am a oversea applicant…

Of course.

Thanks!! Do I send the email straight to gotojhu@jhu.edu or to my regional admission person?

email gotojhu@jhu.edu and ask if they’re the correct recipient. Then follow the advice