I searched but couldn't figure out where in the Dahua camera browser menu or NVR to change the size of email attachments sent with alerts via smtp tab. When I enable the "Attachment" box in attached snapshot, I get varying size attachments in the NVR IVS alerts I've set up. It ranges from 400kb(HDW4431) to 1MB+(HDW4631). I'd like to reduce the size of the 6MP camera snapshot attachment files to under a MB as I can VPN to NVR to view footage when needed. Any tips to set the attachment size so it can download quickly in low signal cell coverage areas?