Problem with Yahoo emails

Hi everybody,
When a candidate applies and writes a Yahoo e-mail adress in the “apply now” form (like @yahoo.fr or @yahoo.com), I never receive any mail notification. When the candidate writes another type of e-mail (@gmail.com, @outlook.com, etc …), there’s no problem and I always receive a mail notification.
So I guess there’s always a problem with Yahoo e-mails ??
Do you know how I can solve this problem, please ?
Thanks a lot for your help !

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