E Mail Problem

I installed 7 a few months ago,When I transfered my address book some of the addresses won't work.It's telling me "This seems to be an invalid address" and will not send an e mail to the affected addresses.The addresses are fine they work when I use my android with them.Any Ideas???

Hi

Send the people you are having problems with an e-mail on you Android asking them to send you a message.
When you receive it on your computer, use the add to address book option in your e-mail program to add the address to your address book.

If the new one works delete the old one.

Mike