only 2 out of 4 sending email alerts

[cheves]

My system is the following:
(1) NV4108-HS
(2) IP3M-941
(2) IP3M-943
I used to get email alerts for any motion detection on all 4 cameras and now I'm only getting it from 2 of them, email is configured properly and all the cameras are working fine, I can see them on my mobile app and on the https://www.amcrestview.com/ website, all the configurations are the same on all 4 cameras but I'm only getting alerts from 2 of them.
Need help here please.

[cheves]

This started like a month ago and might be the result of moving sensitivity and threshold but I had everything back to where it was.
The cameras are detecting motion but they are not triggering the email on 2 of them.

[Melvin]

Hello cheves,

If the email is configures through the NVR, ensure that the send mail option is checked under video detection settings for each NVR channels.

If you are still having issues, please do give us a call on 1-888-212-7538