郵政規則是接受要約的另一種手段。這是一套規則，管理時，接受的溝通已發送的職位，并用于解決任何爭端，有懷疑的有效性的溝通要約。一般的規則，已經通過在英國法關于驗收通過后由亞當斯五世素的情況下。[ 1 ]本案涉及提供出售羊毛原告被告，并要求郵寄回復。原告的信件被延遲在郵政，因此被告出售羊毛給其他人，相信原告不再感興趣的交易。然而，法院聽取了原告在收到要約的當天發了一封回復函，因此法院認為有強制執行的合同。這一決定背后的原則是，一個接受要約的溝通有效，一旦它是由受要約人發布，而不是當它收到和打開的要約人。這個原則允許一方仍然有權執行一個可執行的合同，即使程序的事情被推遲超出其控制。它有效地使受要約人的任何責任一旦接受信已經張貼到要約人，和地方的責任人要滿足合同約定的程序要求。當看到亞當斯五世素如果要約人不等待一個合理的時間確認期，隨后將該商品或服務，那么他們可能如果碰巧確認到達后一階段負責。
<标题> The postal rule is an alternative means of accepting an offer. It is a set of rules that govern whenever communication of acceptance has been sent by post, and are used to resolve any disputes where there is doubt as to the effectiveness of the communication of the offer. The general rule that has been adopted under English law in regards to acceptance by post is given by the case of Adams v Lindsell. This case involved the defendants offering to sell wool to the plaintiffs, and asking for a reply by post. The plaintiffs’ letter was delayed in the post, and hence the defendants sold the wool to someone else, believing that the plaintiffs were no longer interested in the deal. However, the court heard that the plaintiffs had sent a letter of reply on the same day they received the offer, and hence the court held that there was an enforceable contract. The principle behind this decision was that a communication of acceptance of an offer becomes valid once it is posted by the offeree, not when it is received and opened by the offeror. This principle allows for a party to still have rights to an enforceable contract even where the procedural matters are delayed beyond their control. It effectively exonerates the offeree from any liability once a letter of acceptance has been posted to the offeror, and places the onus on the offeror to satisfy the procedural requirements of the contract. As was seen in Adams v Lindsell if the offeror does not wait for a reasonable period of time for confirmation, and subsequently disposes of the goods or services, then they may be liable if it so happens that the confirmation arrives at a later stage.