> That's another problem, i talk about technical stuff and not political ones, if your recipient don't want Chinese mails than this is your (or his) (non-)probl

> That's another problem, i talk about technical stuff and not political ones, if your recipient don't want Chinese mails than this is your (or his) (non-)problem, that's a human problem The problem is that a recipient my want Chinese emails, but an operator of an anti-spam system may not know this and just block the whole country using GeoIP and TLD block as a poor-man anti-spam measure. Geo filters IMHO are overused but end users often have no easy way to communicate their problems to whoever sets such filters. In a largish company a user who suspects that emails addressed to him are blocked for no good reason will have to raise a ticket with company's IT which then in turn will have to raise a ticket with a vendor and in a month if a user is lucky the problem will be resolved by which time a sender will either find another way to communicate or will give up. And a user needs to know that someone have unsuccessfully tried to send him an email he wants to receive in a first place.