Using Mass Email function gives Internal Server Error??

[injected]

I just installed a fresh cart on my site. From the old site, I needed to copy over ONLY customer information. In the phpMyAdmin, I updated tables address_book, customer_info, customers, and one or two other things. So now I have all the customers on the new cart, including their addresses, emails, customer id, last login date, ETC.

When I go to Email, from the "customers" tab, I try to send a mass email to all of them. I submit my messages, and on the preview screen, hit SEND. The page hangs up for like 2 minutes before giving me Internal Server Error. What am I to do? Thanks

[kuroi]

This may be a question for your web host. Many aren't configured for (or even are configured to prevent) mass mailings from web apps.