1, you can send the corresponding documents through the postal company, and the receipt voucher can confirm that the other party has received the letter. The receipt has the recipient's signature or a record of refusing to sign or refuse.

2. E-mail or fax can be sent, whichever is successful, which means that the other party has received the reminder letter.

Extended data

The legal provisions on the service of letters mainly include the Civil Procedure Law, Opinions on Civil Litigation, and Several Provisions of the Supreme People's Court on the Courier Service of Civil Litigation Documents.

I. Civil Procedure Law

Section II Delivery

Article 77 There must be a receipt for the service of litigation documents, and the addressee shall record the date of receipt, sign or seal on the receipt. The date of receipt by the addressee on the service receipt shall be the date of service.

Article 78 Litigation documents shall be served directly on the addressee. If the addressee is a citizen, I will not give it to his adult family to sign for it; If the addressee is a legal person or other organization, it shall be signed by the legal representative of the legal person, the principal responsible person of other organizations or the responsible person of the legal person or organization; If the addressee has an agent ad litem, he may send it to his agent for signature;

If the addressee appoints an agent to the people's court, the addressee shall sign for it. The date of delivery is the date when the adult family members, legal persons or other organizations of the addressee are responsible for receiving and the litigation agent or agent signs for it.

Article 79 If the addressee or an adult family member living together refuses to accept the litigation documents, the addressee shall invite the representatives of the relevant grass-roots organizations or units to be present, explain the situation, record the reasons and date of refusal on the service receipt, and leave the litigation documents at the addressee's residence with the signatures or seals of the addressee and witnesses, which shall be deemed as service.

Article 80 If it is difficult to serve litigation documents directly, it may entrust other people's courts to serve them on its behalf or by post. If it is delivered by post, the date of receipt indicated on the receipt shall be the date of delivery.

Article 81 If the addressee is a soldier, it shall be delivered through the political organ of the unit at or above the regimental level where he belongs.

Article 82 If the person to be served is imprisoned, he shall be delivered through his prison or labor reform unit; If the addressee is a reeducation-through-labor person, it shall be served through his labor reform unit.

Article 83 After receiving the litigation documents, the organs and units that transmit them on their behalf must immediately give them to the addressee for signing, and the date of signing on the receipt shall be the date of delivery.

Article 84 If the whereabouts of the person to be served are unknown or cannot be served by other means specified in this section, it may be served by public announcement. Sixty days after the announcement, it shall be deemed to have been delivered. When the announcement is served, the reasons and process shall be recorded in the file.

Two. The Supreme People's Court's Opinions on Several Issues Concerning the Application of the Civil Procedure Law of People's Republic of China (PRC)

8 1. The service of litigation documents to a legal person or other organization shall be signed or sealed by the legal representative of the legal person, the main person in charge of the organization or the person in charge of receiving documents such as the office, mail room and duty room. If a legal person refuses to sign or seal, it may be served by lien.

82. If the addressee refuses to accept the litigation documents, and the representatives and other witnesses of the relevant grass-roots organizations or units are unwilling to sign or seal the service receipt, the addressee shall record the situation on the service receipt and leave the service documents at the addressee's residence, which shall be deemed as service.

83. If the addressee has an agent ad litem, the people's court may serve the addressee or his agent ad litem. If the person to be served entrusts an agent ad litem to collect it, it shall be served by lien when it is served on the agent ad litem.

84. The conciliation statement shall be delivered directly to the parties themselves, and it shall not be served by lien. If the parties are unable to sign for it for some reason, they may sign for it on their behalf by their designated agents.

85. If delivered by post, a receipt shall be attached. If the date of receipt indicated on the registered letter receipt is inconsistent with the date of receipt indicated on the delivery receipt, or if the delivery receipt is not sent back, the date of receipt indicated on the registered letter receipt shall be the date of delivery.

86. According to Article 80 of the Civil Procedure Law, if other people's courts are entrusted to serve on their behalf, the entrusting court shall issue a power of attorney, together with the litigation documents served and the service receipt, and the date of service shall be subject to the date of receipt by the addressee.

87. According to Articles 81 and 82 of the Civil Procedure Law, if the litigation documents are delivered to the relevant units, the date of receipt indicated by the addressee shall be the date of delivery.

88. The announcement can be posted on the court bulletin board, the original residence of the addressee (beyond the provisions of the Civil Procedure Law, but more practical and fair than the court bulletin board and newspaper announcement) or published in the newspaper; If there are special requirements for the delivery method of the announcement, the announcement shall be made in the required way. Upon the expiration of the announcement, it shall be deemed to have been delivered.

89. If a copy of the complaint or appeal is served by public announcement, the main points of the complaint or appeal, the time limit for the respondent to reply and the legal consequences of failing to reply within the time limit shall be explained; When the summons is served by public announcement, the place and time of appearing in court and the legal consequences of not appearing in court after the time limit shall be clearly stated; If the written judgment or ruling is served by public announcement, it shall explain the main contents of the written judgment, and if it belongs to the first instance, it shall also explain the right of appeal, the time limit for appeal and the people's court of appeal.

90, the people's court in the regular sentencing, the parties refused to sign the written judgment or ruling, as served, and recorded in the sentencing record.

Third,? Provisions of the Supreme People's Court on the delivery of civil litigation documents by court express mail.

In order to ensure and facilitate the parties to exercise their litigation rights in accordance with the law, these Provisions are formulated in accordance with the relevant provisions of the Civil Procedure Law of People's Republic of China (PRC), combined with the experience of civil trials and the actual situation in various places.

Article 1 If it is difficult for the people's court to serve litigation documents directly, it may serve them to the State Post Bureau (hereinafter referred to as the postal department) by the court express mail, except in any of the following circumstances:

(1) The addressee or his agent ad litem or the agent designated by the addressee agrees to go to the people's court for service within the specified period;

(2) The whereabouts of the person to be served are unknown;

(three) the law or the international treaties concluded or acceded to by China have special delivery methods.

Article 2 Civil litigation documents served by court express mail shall have the same legal effect as those served by the people's court.

Article 3 When a party brings a lawsuit or pleads, it shall provide or confirm its accurate address for service to the people's court, and fill in the confirmation of the address for service. If the party refuses to provide it, the people's court shall inform him of the adverse consequences of refusing to provide the address for service and record it in the record.

Article 4 The confirmation of the service address shall include the postal code of the service address, the detailed address of the recipient and the contact telephone number. The people's court shall keep confidential the contents of the confirmation letter of service address. If a party changes the address of service before the first trial, the second trial and the end of execution, it shall promptly inform the people's court in writing.

Article 5 If a party refuses to provide his own address for service and fails to do so after being notified by the people's court, the natural person shall take his domicile or habitual residence as the address for service; A legal person or other organization shall take its domicile in industrial and commercial registration or other legal registration as the service address.

Article 6 If the postal service is delivered to the address provided or confirmed by the party concerned, the receipt shall be returned to the people's court within the specified date. If a postal institution fails to deliver the mail at the address provided or confirmed by the parties for more than three times within five days, and cannot notify the addressee by telephone or other contact means, it shall return the mail to the people's court within the specified date, and explain the reasons for the return.

Article 7 If the addressee entrusts an agent, the receipt of the designated agent shall be regarded as the receipt of the addressee himself. If a postal institution fails to meet the addressee at the address provided or confirmed by the addressee, it may hand over the mail to an adult family member who lives with the addressee for collection, unless the addressee is the other party in the same case.

Article 8 The addressee and his agent shall sign, seal or stamp the receipt. When the addressee and his agent sign for it, they shall show their valid identity documents and fill in the certificate number on the receipt; If the addressee and his agent refuse to sign for it, the postman of the postal institution will return the mail to the people's court after indicating the situation.

Article 9 In any of the following circumstances, it shall be served:

(1) The recipient signs, seals or seals the receipt;

(2) The addressee is a natural person without or with limited capacity for civil conduct, and his legal representative shall sign for it;

(3) If the addressee is a legal person or other organization, it shall be signed by the legal representative of the legal person, the main person in charge of the organization or the staff in the office, mail room and duty room;

(four) signed by the agent ad litem of the addressee;

(five) signed by the addressee designated by the addressee;

(six) the recipient's adult family members living together to sign for it.

Article 10 If the addressee is himself or his legal representative, principal responsible person, legal agent or agent ad litem, he shall inspect the contents of the mail on the spot. If the signer finds that the contents of the mail are inconsistent with the name of the document on the receipt, he shall submit it to the postman of the postal institution on the spot, and the postman will return the mail to the people's court after recording the situation on the receipt.

The recipient is the staff of the recipient's office, mailroom and duty room or an adult family member living with the recipient. If the addressee finds that the contents of the mail are inconsistent with the name of the document on the receipt, he shall return the mail to the people's court within three days after receiving the mail, and explain the reasons for the return in writing.

Article 11 If the service address provided or confirmed by the addressee himself is inaccurate, refuses to provide the service address, fails to inform the people's court in time, or the addressee himself or the agent designated by the addressee refuses to sign for it, resulting in the litigation document not being actually received by the addressee, the date of return shall be the date of service. If the addressee can prove that he is not at fault in the process of serving the litigation documents, the provisions of the preceding paragraph shall not apply.

Refer to "Several Provisions on Court Express Service of Civil Litigation Documents"