ICANN has been releasing new top level domain names for the last five years. So why are they treated with such distrust from web and mail apps alike?
Case in point, last summer, several registrants of .coop domains got in touch saying that all of a sudden their emails were being rejected as spam. It turns out that the latest update for their spam filter included a rule stating that all email addresses ending in .coop were invalid and should therefore be classed as spam and not released to the net.