noun
previous letter; last letter
Used in correspondence to refer to one's own previous letter or message. Common in formal or business contexts.
前便にてお知らせした通り、会議は延期となりました。
As I informed you in my previous letter, the meeting has been postponed.
前便の内容について、ご質問があればお知らせください。
If you have any questions about the content of my last letter, please let me know.