if you have not received an email on Sunday does this mean you are not going to be a part of the airdrop or all who have entered to the lucky 1000 participants are assured to be a part of the airdrop this should clearly be stated ....
To answer your question directly, i'll say YES! If you don't receive email, you didn't pass check and hence no Airdrop.
I'm not a developer with PROCOM so my answer might be right or wrong!What I think.
I don't believe all will qualify to receive the airdrop due to Proxies, Vpn, Tor and other means to mask identity online.
I also believe other innocent ones will fall victims to this checks because there are times when it becomes very difficult to tell the difference between real and fake.
I also believe others will have a successful double entries because of RDPs', VPS, and other dedicated servers alike.
Of all these, i think those in charge of airdrop must send a mail to every participants letting them know if they were selected or not, that way, no one wil spam them will mails.