If you are getting mail delivery failure notifications in your inbox for emails that you haven't sent, this likely means that your email address has been compromised and you should change your password as soon as possible. You can reset your password here.
The reason you're seeing these messages is usually because someone has compromised your account and is using your Texas.net email address to send out large amounts of spam messages to many different email addresses. Often the messages sent will not be deliverable, and you will see mail delivery failure notifications in your inbox for these emails that were sent from your Texas.net email address without your knowledge.
If you have any trouble resetting your password, please get in touch with our support team as soon as possible!
If you need any further assistance, please contact our 24/7 Customer Success Team, who would be glad to assist.