Mass email

I am attempting to mass email a large group of people, but I don’t know how to do this without spending a ton of time inserting everyone into my address book on my yahoo email. Is there an easier way to do this without inserting everyone’s email address every single time I want to mail something to them via email?

I know that I can blind email people by using the BCC, but I am putting together a list of about 2,000 email addresses that I am talking about here.

Any ideas? - Thanks!
I assure everyone that I am NOT doing a spam email, this is for the company that I work for & we just want to try & save money to email our current customers that we already have!
I haven’t yet put these individuals into my Address Book yet & I don;t think that the BCC will handle 2,000+ emails - as I have to have them all undisclosed.

Seriously… whenever I need to drop a line to everyone, one person can see all of the addresses that I have sent mail too…
How do I change that without having to send one email at a time?

mass emailing list

I want to set my contacts up in different groups so that when I need to send out a mass email, I can just click on one thing rather than having to click each person’s email in my address book. For example, I need a group for choir, a women’s group, Sunday School class, etc. How do I do that in Yahoo? It never fails when I send out a mass email that I forget someone!