189 didn't send a text message at all, but received many rejection notices?

If 189 mailbox receives a large number of returned letters, it can be judged that it is caused by theft. Illegal users will be intercepted by the anti-spam function of 189 mailbox after sending spam through the stolen mailbox, resulting in a large number of mail rejections, and illegal users will also empty all records of the outbox. When you find this situation in your own 189 mailbox, it is recommended to modify the mailbox password immediately to avoid other economic losses. Click "official website" Customer Service 22 1 below for more service offers.