Can a colleague respond to 221g for H1B

Hi Team,

I have a question regarding my 221g .I got 221g slip in interview for client letter and now I got client letter from client . In the meantime my organization revoked my access to sending emails to outside domains. I can send emails only to my organization domain only and I can not send the documents to outside aswell because its a confidential documet.

Can my colleagues or some one from my organization can respond to my 221g ?

Appreciated your quick response.