how can i monitor spam activities

i’ve been experienced frequent disconection from my ISP, and when i asked them th reason why they disconect me they will be telling me that some sites have report my IP address for scamming and they were telling me that i can be manage all the sites they are visiting and block the one i dont want people to browse. But i dont know how to do that from my routerbox…

the router has nothing to do with managing emails (spam) so you will not be able to know which of your user sends spam. however, then you talk about scam - and that’s another thing. if there are websites that you don’t like your users to see, use the Webproxy Access list to block them.