This is a matter of tone or "register". "Kindly" is seen in America as being old-fashioned and overly formal. Not incorrect, but rare and getting rarer. See, for example, this ngram result for "kindly reply" vs. "please reply". The last time the former was as common as the latter was about 1910. As of 2000, "please reply" was about 25x as common. I can't speak for BrE usage.
meaning in context - Difference between "kindly" and "please" - English ...
Used as adjectives, 'kind' and 'kindly' are synonyms. You may replace one with the other. Kindly 1. adjective [usually ADJECTIVE noun] A kindly person is kind, caring, and sympathetic. He was a stern critic but an extremely kindly man. Synonyms: benevolent, kind, caring, nice However, 'kindly' can be used as an adverb, meaning 'thoughtfully or helpfully' Kindly
Sometimes I received emails start with "Kindly notice", and other times "Kindly note", I checked the two meaning on the dictionaries and it seem both of them can be verb and they have similar meani...
meaning in context - "Kindly notice that" or "Kindly note that ...
Consider the common phrase "please kindly listen while I explain this; or kindly wait while I check this." In my view please is asking while kindly, as already mentioned, is used to take the edge of a command. An example being in written format: 'kindly pay your debt at your earliest convenience.' The use of both words together is contradictory.
I kindly request to apply in your company. Is the usage of "kindly" correct here? I am writing a message to a company I am applying for.