Over the past few months I have received emails (oddly) and snail mail correspondence from American Express stating that email directed to my email account has been "retunred". I called American Express and was told that there are five email addresses they use to send out notifications and presumably ATT has put a block on one or more of those addresses. I contacted ATT who was supposed to take care of the problem, but alas, it's happened again this month! Where is the "safe sender" list so I can add the five American Express email addresses and continue to receive their communications?
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