Something else to be aware of--which I've heard second hand--is saying anything that implies you'll be in the country to work. This can potentially include an honorarium, travel expenses covered, etc. Just something to watch.
(As a US passport holder) attending conferences in most countries, much less answering some emails, without a specific business visa has never been an issue for me personally, but it can be an issue for some. (And business visas with letters of introduction etc. are required last time I got one from e.g. China.)
(As a US passport holder) attending conferences in most countries, much less answering some emails, without a specific business visa has never been an issue for me personally, but it can be an issue for some. (And business visas with letters of introduction etc. are required last time I got one from e.g. China.)