Why, after 12/27/17, can I no longer change the default sending address from my @yahoo address to my @sbcglobal address?
Before 12/27/17, my @yahoo and @sbcglobal.net email address were linked and compatible. Now, they no longer are. I've had to re-establish mail forwarding between the two, and now I can no longer use my @sbcglobal.net address as my default sending address.
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