Authentication for SMTP connection in Hung Scripts

Improve hung scripts to allow an authenticated smtp connection (as Notify handler does).

sendemail.exe is able to use authentication, but our scripts don't allow it.

The request is to add this possibility during a SAM upgrade, in the tab where we setup smtp address, sent to address and domain name, add optional port number and authentication information to add these parameters in the hung scripts.

Additionally, the sender automatically generated with the <process name>@domain name would ideally allow to enter a unique sender (customers have often to allow sender by sender in their smtp settings).