Automatic Emailing of reports - Can do it but where from?

I currently have a system which emails reports throughout the day and night.
I have used this system in conunction with scheduled tasks, with great
success, on an unused XP machine using ClickYes & currently on an unused
Windows 98 machine, where I just leave Outlook open. My problem is that the
98 machine is needed by the client for another use. There are no other
spare machines & Access isn't installed on the Server. I had an exchange
profile setup in the name of SystemReports which looks more professional
than a users name & I can't guarantee that a user's pc will be on and logged
in when the reports need to be sent. How are others emailing auto emailing
reports using scheduled tasks? Any recommendations?

Thanks in advance