used to indicate the source or reference from which information, standards, or rules are derived
によって
used at the beginning of a business letter, etc. to indicate the subject of the letter, or an email that is a reply to a received one
RE: ジョブアプリケーション, RE: 仕事の応募
in conformity with or following a particular standard, rule, or guideline
の下で, に従って
used to introduce or qualify a relevant or timely comment or topic; with regard to
の件について, に関して
used to show compliance with a specific rule, guideline, or standard
に従って, に基づいて
referring to or concerning a particular topic, subject, or context
に関して, について
used to indicate that something is being mentioned or discussed in relation to a particular subject, source, or context
あなたのメールに関して, 関連して
used to indicate a relationship or association between two or more things
に関連して, に関して