139 can I send messages directly to the other party's mobile phone?

139 mailbox is very powerful ~ you can not only send emails, but also send text messages ~

It supports sending to mobile, Unicom and telecom users, and can be sent to 10 people at the same time. It also has the function of sending at regular intervals ~ limited to 250 pieces per day and 2500 pieces per month. You can log in to 139 email to view and use it ~