question about email notification

[baghdad4ever]

hi

i have 28000 users

i wanna to prevent any thread notification by email

how can i do that???

i wanna to prevent that to new and old users??

[baghdad4ever]

can some one help??

and how can i delete the old subscribe??

some one help me

and say

use this sql query

UPDATE `subscribethread` SET `emailupdate` = '0'

is that true???