It has not been solved. It continues to persist, however, I don't believe the problem is what many think it is.
viewtopic.php?t=45138
I believe there is a lot of misinformation being spread about the root cause of this problem. In essence, the Church is using Amazon SES to send out emails from mail.churchofjesuschrist.org. Amazon SES has an email address suppression technology that the Church must be using to filter out what it considers to be "bad" email addresses. I don't believe that AOL, Yahoo, Gmail, Hotmail, or any of the other scapegoats are necessarily at fault, however, I won't deny that sometimes they do unwise things with respect to email, but I think we do members a disservice to lay all the blame on their ISP for this problem. It's actually more complicated than that---communication problems are a 2-way situation. The number of reasons why a message could be rejected by an ISP are varied and do not all necessarily represent a permanent condition, nor do they represent an indication that the sender is being blocked, however, it appears that the Church's suppression list is treating any failure as a permanent condition---despite the fact that the email address is working and legitimate---and once your email address ends up on the blacklist, it is currently impossible to have the Church remove that address.
You can change your email address and it will continue to work up until it ends up on the Church's blacklist again.
I don't know why it is so difficult to have this addressed from Church email administrators. Is there an unwritten policy somewhere regarding blacklisting email addresses of members? What does the handbook say?
You could try contacting Global Services Department and reqeust that they remove the block on your email address.
God Bless