Hotmail, Yahoo!, Gmail, etc?
I mean like, you can just type firstname.lastname@example.org, email@example.com, firstname.lastname@example.org
If you want a nice emailer try Windows Live Mail -- it's pretty cool and professional looking.
i would like to know which email client/provider is the best for sending the same email to several email addresses at the same time. ....
Such as sending an email saying "Hello" to 250 email addresses?