How can I resolve the problem of bounce-back e-mails?
I recently switched to u-verse. I have Yahoo for my e-mail with an att.net address. When I send out e-mails to people in my address book most of them come back with the mailer daemon saying "not a valid address" or (for one with an att.net address) "not one of our customers". These are the same addresses that I used before switching to u-verse and never had a problem. Contacted att and they say it's a Yahoo problem. Does anyone have any thoughts? Thanks,
p