Originally Posted by
petehsiung
So I think its safe to say that every country keeps their own immigration record and its not shared with others outside much- fines, misunderstandings.
No, I wouldn't go that far. There are a number of "discreet" stamps and markings that are used by countries such as the USA, Canada, UK, Schengen states, etc.. to denote visa refusals and/or denied admissions. These are pretty well known in the community of people that deal with these things.
Mongolia on the other hand is not exactly a hotbed of immigration fraud.