receieveing a large amount of junk mail lately

i have got a large amont of junk mail since bottom of may

b4 i ve never receieved any of them for many years

and i suspect all of them are from the same junk mail sender

but each of them has different mail address

most of them can be filtered by junk box

but i may need to sometime pick put some private mail from those junk which is painful

also it is suspicious as i cant find my email address from the details and message source as receiver

i wonder how those came into my junk box ...

and any possible way to get rid of it ?

Question about Outlook Express