SBO Mailer Questions

Hello:

This SAP Business One 9.3 PL06 client does not have "SBO Mailer" listed in Service Manager on the Terminal Server. What needs to be modified or installed in order to get SBO Mailer, in place?

Also, the client wants to use one e-mail address as the "send" address in one company but a separate e-mail address as "send" in another company. Is that sort of configuration possible?

Thanks!

John