Bye, trolls: you can now prevent the most offensive/annoying/persistent denizens of the internet underworld from contacting you forever.

In a post last week on the Gmail Blog, product manager Sri Harsha Somanchi describes Gmail's blocking feature:

"Sometimes you get mail from someone who's really disruptive. Hopefully it doesn't happen often—but when it does, you should be able to say, "Never see messages from this person again."

Future mail from your blacklisted addresses will be marked as spam - (and, if you change your mind, you can unblock under Settings).

Sri says they've also added another way to stay on top of your inbox - the unsubscribe option, which allows you to opt out of annoying mailing lists directly from the Gmail app.