E-mail Address Limit

[Roady]

The limit is probably set by your ISP. They do this to
prevent abuse (spam). You can contact them for the limit
or you can just sent the message a couple of times. Try
it with 100 addresses and use more or less recipients
from there.

You could also use Mail Merge in Word.

Make sure you use the BCC so you won't expose people
their e-mailaddress to others.

Hope this helps!