The unsubscribe from mailing lists doesn't work.
Get the message delivered to the mailing list that you don't want to be a part of it. Every time I unsubscribe (I think) from a mailing list there is a mail delivery failure notice in my junk mail. PLEASE fix this problem.
726th
ranked

Hi there, I’m sorry to hear that! We’d like to further investigate this, can you message us directly on Twitter at @YahooCare or on Facebook on our Yahoo Customer Care page? In case you do not have a social media account, please contact us at help.yahoo.com
Thank you!
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Richard T Bearse commented
When you click on "Unsubscribe" in the received Yahoo Newsletter email, the page "Can't Be Found" & you are redirected to the Yahoo Home Page!