I have a specific email group of about 165 people. I have been trying to send them all an email via Gmail (to which I am still quite new, being a Hotmail user) and last night when first trying to send it out, all came back as mail delivery failures.
So I searched for solutions and was told to create a Gmail group list and import it. I did that and it took me hours. Then I re-sent the email and I still got back about 75 of the 165 as mail delivery failures. If this keeps up I will quit Gmail because I need to contact lots of people for my work.