Whenever you receive a message then OnlyFans send you a email alert for messages so that you can reply them fast. Now a days some of the users have experienced that OnlyFans is no longer sending email notifications for messages.
OnlyFans provide email alerts when you receive less messages and once you stared receiving more messages on OnlyFans so they try to send less email so that they don’t come under spam emails.
As you grow on OnlyFans, you receive more and more messages so it will be difficult for OnlyFans to send and email alerts every time someone sends you a message.
If you really want alerts for OnlyFans messages then you should turn on telegram notifications. It will work fine even if you receive thousands of messages on OnlyFans daily.