I mailed you from two accounts, including my Gmail, and from different IPs while travelling exactly because of this reason of previously undelivered emails. Even sent you a message via Facebook Messenger. There is just no way you could not have seen any of them.
And by the way, if there was an unsubscribe button, I would have used it. The messages did not display any, and I checked the raw code - nothing:
>>Have fun, follow the event live via: Follow Live<https://www.gps-speedsurfing.com/default.aspx?mnu=event&val=768> or go to the Luderits speedchallenge website to find out more: Luderitz speed challenge 2022<https://luderitz-speed.com/luderitz-speed-challenge-2022/>
Greetings the Luderitz Speed and GPS-Speedsurfing team<<