BoltMail
Is it possible to have different sender addresses/names on e-mails?
Yes. When you set up a user, a contact list and again when you are sending out an email you are given the opportunity to set any name and email address that you wish for the contacts to receive mail from.

The application will then send the email out with the From and Reply-To headers set to your preference.

Each user can set up their own details and even change them for individual sends.