This error is on Yahoo's side and only Yahoo can fix it. Fortunately, Yahoo staff report that they are aware of this problem and Yahoo engineers are working to fix it. They expect this issue to be resolved within 3-7 days. To view the question and the Yahoo staff member's response:
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Verified answer
This error is on Yahoo's side and only Yahoo can fix it. Fortunately, Yahoo staff report that they are aware of this problem and Yahoo engineers are working to fix it. They expect this issue to be resolved within 3-7 days. To view the question and the Yahoo staff member's response:
http://ca.answers.yahoo.com/question/index;_ylt=An...
If you continue to receive this error message after 7 days, please contact Yahoo directly:
https://io.help.yahoo.com/contact/index?locale=en_...
Select 'Mail'
For version, select how you access Yahoo Mail
For Topic, select 'Errors'
For Sub-topic, select 'Received temporary error code'
Click Email and fill in the form