some people that I know are having their emails to me rejected.

Nancy sends an email once a week to everyone on a book club list. I don't receive it. The week before I stopped receiving it , the message went to spam. Another person sending to a large list got a response from me that said that I am not receiving emails. Another person tried to send me nancy's notice twice. Once it never arrived and another time the email message took two hours. There is no way to know how many messages that I would want are just getting rejected.