thanks... of course there isn't one for LTN87**... probably because I've been complaining too much.
After some long research and help from mib, here are the new firmwares for LTS related items with email fix:
NVR3 (LTN88xx series)
http://dl.ltsecurityinc.com/firmware/platinum/latest/NVR3_V3.1.1_160816.zip
NVRK (LTN88xxK series)
http://dl.ltsecurityinc.com/firmware/platinum/latest/NVRK_V3.4.6_160804.zip
NVR5 (LTN89xx Series)
http://dl.ltsecurityinc.com/firmware/platinum/latest/NVR5_V3.3.6_160810.zip
IPC 2 (most 1.3 MP / 3 MP IP cameras, again i would double check your model)
http://dl.ltsecurityinc.com/firmware/platinum/latest/IPC2_V5.3.0_160918.zip
IPC4 (most 2 MP/ 4 MP with WDR and 5 MP without WDR)
http://dl.ltsecurityinc.com/firmware/platinum/latest/IPC4_V5.4.0_160826.zip
Hope this helps, it looks like they are on track to release the email fix for all their equipment.
You can double check the model/firmware at their site on the bottom: http://www.ltsecurityinc.com/downloads)