What you'd like to do is forward the email back to the sender! If they spam
a million messages, hit their servers with a million of their own forwarded
messages or automated replies! Dreamin' on . . .

"AN user" wrote:

More then just adding them to junk mail, which senders have gotten around by
changing the address a little each time, I want to forward each mail
individually.

"Raddster" wrote:

With the ever increasing volume of spam and junk mail, it would be most
helpful if outlook would allow the user to highlight multiple email messages
and mark each of them as junk mail and send them to the blocked senders list.

It currently takes a signficant amount of time to select them individually
and mark them as junk. Having this feature will save enormous amounts of
time.