I’ve also been bombarded by emails from zeetracks.info and reported all of them. Seems to be taking awhile to snag them in the spam filters so in the mean time I created a filter of my own. All the emails have been “somethingtodowiththespam”@zeetracks.info, so if you make a filter for – From: ‘@zeetracks.info’ and check the ‘Skip the Inbox’ and ‘Delete’ options then you won’t be bothered by them anymore 😀 Working for me, hopefully that will help everyone while Google figures it out.

Filters is under Settings in Gmail.