In the state of Texas, email notifications are sent out before the filings are accepted by the court.
If you receive a rejected notification for a filing neither you nor your firm submitted, this is because you were served on a filing that was submitted but was later rejected by the clerks.
NOTE: Filers may experience some delays in receiving email notifications if they are sent prior to a filing's acceptance by the court or if they are sent by either the court or by another efiling service provider.