Changing email address

I have to change my email address because my ISP has a different provider. How can I send the same email to everyone in my address book? Also how can I export (import?) my address book to my new provider? Will appreciate any help or tell me where I can find instructions to do this. Thanks

I need to clarify. I use Netscape Messenger and want to transfer my address book (also bookmarks)
from my old ISP to my new ISP. I have copied my address book to a floppy but cannot get it into the address book on the Netscape Messenger of my new ISP. I'm frustrated--can you help. Many thanks.

 

Most ISP's will forward any emails from your old account to your new account for a limited time so if anyone does send a message to the old address you will still get it. Generally your address book stays with the application you are using for an email client unless you have web based email like hotmail. If your email client is Outlook, OE or something loaded on your hard drive don't worry about it. Notifying everyone with Outlook is easy, and all you have to do is create a personal distributin list within your address book and add all the names to it.