E-Mail Registration

:THNK Are there any problems with receiving registration info that is being sent to Yahoo? I have a strange situation where I have Verizon ISP and my incoming and outgoing SMTP contain the word Yahoo but my email address does not. My email only contains the Verizon name. Sometimes I have had to use my secondary MSN email in order to receive registration infos.

How long does it take to receive the registration for the backup program? How long do you think I should wait before giving the secondary MSN address?

Thanks for any help