I\'m sending mail from Jenkins to an anonymous SMTP relay internally. That relay then securely sends mail to exchange online via TLS on port 587. The transport works perfectly,
I'm not sure if it is what you meant, but Jenkins enables you to provide a full Sender E-mail Address for notifications. Go to Manage jenkins, then System configuration and find section called E-mail Notification.
You can provide you email address in a form of Jenkins .