139 how to set the mail forwarding to SMS?

Honey, do you mean the mail arrival notice? You can log in to the email address, enter Settings-Email Filtering and Reminder-Notification Reminder-Email Arrival Notification, open SMS Notification, complete the email notification time, type and other information, and then click OK, as shown in the following figure; In this way, after your mailbox receives a new email, the system will automatically send an email arrival notification message to your mobile phone. Click the view link in the email and log in to view the email content. I hope I can help you!