OK, so your email provider is now Yahoo and you have the Plus package which lets you access mail from a mail client. First let's make sure you can access your mail at all. Go to mail.yahoo.com and enter your username and password to make sure you can get in. If you do, you should see a menu on the left - click on "Inbox" and you should see mail waiting for you - at least a "Welcome" email from Yahoo. Let me know if all this works and then we can go on.
Dave
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