Sounds like you have email alerts selected in your Netgear set up menu. Not sure how you get into yours but you would have done this previously. These alerts are to tell you what has been blocked probably. Just switch it off.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This poetic animation about monsters is illustrated in a Van Gogh painterly style
How to get WWDC 2017 tickets
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.