Hello,
Check this Article:
Deploying clients using a Web link and email
Upon Highlighting the , and then clicking In the Email Recipients and Message panel, specify the email recipients and the subject, and then click .
You can either specify who receives the URL by email, or copy the URL and post it to a convenient online location. To specify multiple email recipients, type a comma after each email address.
Incase, this deployment has already done, and you want to Stop the SEPM from sending emails, then it could be done in SEP SBE 12.1.
Hope that answers!!