I want to be able to send an email from a website into the inbox as an appointment to be accepted

[Chicka]

I need/want to be able to send an email from a website
running IIS and CDONTS for mail (or ASPMAIL) that comes
into the inbox as an appointment to be accepted.

The company is not running Exchange internally or on the
website (which is hosted).

Here is the basic app:
A visitor schedules an appointment to speak to a rep from
the company. Their appointment data is kept in a SQL DB.
I have their name, email, appointment date/time, and some
simple notes.

Later, someone from the company goes online and assigns
the appointment to an internal staff person. Currently
they get an email with the appointment information and can
go online to view the SQL data. I would like the
appointment to show up in their outlook mailbox.

Any ideas. I posting this on the VBScript and
general .asp newsgroups as well.

Thanks,
Matt