554 6.6.0 Error sending message for delivery
554 6.6.0 Error sending message for delivery
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ranked

Hello there,
We’d like to look more into this, would you be so kind to send us a DM on Twitter at @YahooCare, containing your Yahoo ID and a screenshot of your experience? If you’d prefer Facebook, please send us a private message on our Yahoo Customer Care page.
Thank you!
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Japie Krüger commented
Please help as this error persist and i have changed my password, signed out and in again. no effect, any advice please?