To have dynamic from address for separate envelopes within single docusign accounts

i have integrated e-signature api(docusign/esign-client) for signing documents. Now it is happening that all the envelopes have “from “ parameter same as my docusign developers account mail, so email notification related to any document goes to mail id I used to create docusign developers account

Requirement:- I have multiple users who would initiate the signing process for signers. I want that all users email to be used as from parameter of envelope , so when signers complete the signing or any other operations related to that  envelope goes to that user who initiated the process

Also I dont want to create separate accounts for users, in this case how can I achieve my requirements