@LOVEANIMALS, as @carpediem16 noted then listings in Schengen area are no that common. That you seem to receive daily emails of 100+ listings in three French regions seems highly improbably. Suggest delete current saved searches and create new ones.
We have 20-25 saved searches, a handful of which are active at anytime. We’ve never encountered such notifications … that said, we rely wholly on in-app notifications and disable email notifications. Personally, we find email is just too darn slow for THS applications.
If that doesn’t work then below is weblink to other tech troubleshooting ideas. Suspect you may have a fixable tech issue rather than some THS policy challenge.
Hope that you secure a great housesit in France!