I'm somewhat new to Outlook. Had been using Outlook 2003 for contacts and
calendar but still using Eudora (sponsored) for email. I've now bought a new
computer and using Outlook 2007 (& Win7) for all.

I also sync with my Windows mobile phone.

I send out a support group meeting reminder as a volunteer. I have 21 email
addresses on the list currently. I do not know most of the people. In Eudora,
I had one contact with all the email addresses in the 1 contact. I would like
to do the same in Outlook 2007, especially since I sync and don't want to
clutter up the contacts on my phone with people I don't even know.

How would I do this?

Also, so far I haven't found a manual for Outlook to look up individual
questions like this. I guess there isn't one to download, just tutorials?