[Mailman-Users] List size

I am using RH8 with Mailman and Sendmail.

I have list set up that I want to send a newsletter out to. The Iist is about 50000 addresses.

Will Mailman and sendmail be able to handle that?

Also how are the emails sent out when I click send? Is the entire list spooled and then sent out or does it do it in chunks -

You're advice is appreciated...

Thanks

John