How do foreigners feel when they receive holiday greeting messages from China people? Happy or disdainful

I'm not sure. But it should be related to his familiarity with this festival. For example, this is a festival in his own country, and he should be happy. But if it is a festival in China, he is not familiar with it, and he may feel puzzled. So if you really want to wish him a happy holiday, you can invite him to a celebration dinner or other face-to-face activities. Please think more about the appropriateness of short messages.