I don`t receive a confirmation email

Hi there I wonder someone could help me. I downloaded my Draftsight, get activation window I fill it up and send all is good except there is no answer from draftsight. Tried many things I turned my Firewall off as well as my antivirus , added draftsight.com to my trusted web sites doesn`t help. What is a problem please help! I love Draftsight!

Thanks,

Filip