Thank you for your answer.
In the manual form the camera here :
https://www.dahuasecurity.com/asset/upload/download/DH-IPC-HDBW4831E-ASE_Operation_Manual__201706262.pdf
there is a interval option on page 65 as you can see on this screenshot :
So
my IVS detection works well and is good configured and I only have a few false positive.
But my camera is near a door where I go sometimes many time in a few minutes.
So
I would configure to send only a email in 5 or 10 minutes interval.
According to the manual this should be possible, with the "interval" option but I don't have this option in my configuration menu. You don't have it too if I've right understand your answer.
But this should be a option according to the Dahua manual.
It's wroten on page 66 :
Interval : The send interval ranges from 0 to 3600 seconds. 0 means there is no interval. Please note system will not send out the email immediately when the alarm occurs. When the alarm, motion detection or the abnormity event activates the email, system sends out the email according to the interval you specified here. This function is very useful when there are too many emails activated by the abnormity events, which may result in heavy load for the email server.
An idea ?