no
i appreciate u acknowledged our mail with a prompt reply
The correct term is 'acknowledge receipt of'.
That is the correct spelling of the word "acknowledge" (admit, confirm, reply).
ACK
It's correct English but not very good English
The correct spelling is "acknowledge."
The 'proper' spelling of the word is 'acknowledgment' but 'acknowledgement' has become so common that it is no longer considered an error; that is, either is acceptable. The language grows and changes. Many words are spelled differently today than they were just a few years or decades ago. Spelling and definition of words are determined by common usage. As a different meaning or spelling of a word becomes commonplace, it becomes first accepted, then 'correct.'
Yes, "you" can be considered an example of attestation when used to confirm or acknowledge a statement, fact, or opinion. For example, saying "Yes, you are correct" provides attestation to the correctness of the other person's statement.
The correct spelling is acknowledge (confirm or admit).
The correct spelling is "recognize" (to know by appearance, or to acknowledge).
in the mail belo
The correct phrase is "mail you had sent earlier." "Sent" is the past participle form of the verb, and it is used with forms of "have" when forming the past perfect tense.