Starting Thursday, August 13, YouTube will no longer send you emails alerting you of new videos posted by any channels you’ve subscribed to (even if you’ve enabled notifications for that channel). This not only covers regular daily or weekly video uploads but livestreams and show premieres as well.
Google stated that the reason it’s doing away with these email notifications is because “less than 0.1% of these emails are opened.” YouTube creators didn’t find higher levels of engagement from their followers with email notifications either. Rather, with experimentation, Google found that people were more likely to engage with a push notification on their smartphone and with their Subscriptions feed when it stopped sending out email updates.
Google wants to reduce the number of emails it sends out overall as a way to reduce inbox overload and believes that this move will help users realize that any emails it does send out in the future are ones with important information, like mandatory service announcements or notices about your account.
YouTube will continue to show you new content alerts via push notifications, however. You can also manage your YouTube notifications for things like new video alerts to recommended videos and replies to your comments.