Waiting for a package can turn into a frustrating experience, especially when the tracking system shows a prolonged stop at a sorting center. The Postal Mechanization Center (CMP) of Milan Roserio is one of the most important logistics hubs in Italy, a crossroads for millions of domestic and international shipments. Due to its sheer volume of work, it can happen that packages and letters are delayed, lost, or, in rare cases, damaged. Understanding how to act in these situations is crucial to protecting your rights.
Dealing with a postal service issue requires a methodical approach. Whether it’s an eagerly awaited online purchase or an important document, every shipment has value. This comprehensive guide offers a clear and detailed path on how to file a complaint for delays, losses, or damages related to the CMP Milan Roserio, explaining the official procedures of Poste Italiane and providing practical advice for managing the situation effectively, in line with a European market that combines tradition and innovation, even in citizen services.
The Strategic Role of CMP Milan Roserio
The CMP Milan Roserio, located at Via Cristina Belgioioso 165, is a giant in postal logistics. In these large hubs, mail and packages are received, sorted, and redirected to their final destinations. The process is largely automated, handling enormous volumes of mail every day. The center not only processes common shipments but is also a transit point for legal documents and official communications, such as those from the Italian Revenue Agency (Agenzia delle Entrate), easily identifiable by specific registered mail codes. Its function is therefore crucial for the proper operation of the postal service throughout Northern Italy and for flows to and from Europe.
Common Causes of Delays and Issues at Roserio
When a package is stuck at the CMP, there can be multiple causes. Traffic peaks, such as during the Christmas holidays or Black Friday, can slow down sorting operations. For international shipments, transit through customs, which is located at the CMP, may require inspections and checks that extend delivery times. Other reasons include incorrect or incomplete addresses, damaged or illegible shipping labels, and, in rarer cases, internal logistical problems or accidental damage. Understanding these dynamics helps to put the problem in context before starting any complaint procedure.
Before Filing a Complaint: Preliminary Checks
Before initiating a formal report, it is important to perform a few checks. The first step is to carefully check the tracking of the shipment on the Poste Italiane website or the original courier’s site. Sometimes, the “in processing” status can last for a few days without there being an actual problem. It is also useful to verify that the address provided to the sender is correct and complete. If the shipment is from a non-EU country, keep in mind that customs clearance times can vary considerably. Finally, it is advisable to wait a few business days beyond the expected delivery date before becoming alarmed: sometimes it is just an operational delay that resolves on its own.
How to File a Report for Delays and Lost Packages
If the preliminary checks have not yielded results and the delay continues, it is time to take action. Poste Italiane provides several ways to submit a formal complaint. The procedure is standardized and is not directed at a single CMP, like Milan Roserio or the Bologna CMP, but at the national customer service, which will then handle the internal investigation. The complaint can be filed by either the sender or the recipient. However, for international shipments, it is often more effective for the sender to contact the postal operator in their country.
The Official Complaint Procedure with Poste Italiane
The most direct way to file a complaint is through the Poste Italiane website. In the “Assistance” section, you can access a guided online form to report issues with packages and express mail. This procedure allows you to enter all the necessary data, such as the shipping code, and receive a case number to monitor the status of the complaint. Alternatively, you can download the “Complaint Letter” form from the site, fill it out, and send it through various channels.
Channels for Submitting the Complaint
In addition to the online procedure, Poste Italiane offers more traditional channels for those who prefer direct contact or a paper record of the submission. You can submit the completed complaint letter via:
- Certified Email (PEC) to reclamiretail@postecert.it.
- Fax to the number 0698686415.
- Registered Letter with Acknowledgment of Receipt addressed to Casella Postale 160, 00144 Rome (RM).
- Hand-delivery at any post office.
- Certified Email (PEC) to reclamiretail@postecert.it.
- Fax to the number 0698686415.
- Registered Letter with Acknowledgment of Receipt addressed to Casella Postale 160, 00144 Rome (RM).
- Hand-delivery at any post office.
For urgent matters or to request preliminary information, you can contact Customer Service at 803.160 (toll-free from landlines) or 06.4526.3160 (from landlines and mobile phones).
- Certified Email (PEC) to reclamiretail@postecert.it.
- Fax to the number 0698686415.
- Registered Letter with Acknowledgment of Receipt addressed to Casella Postale 160, 00144 Rome (RM).
- Hand-delivery at any post office.
For urgent matters or to request preliminary information, you can contact Customer Service at 803.160 (toll-free from landlines) or 06.4526.3160 (from landlines and mobile phones).
Essential Documents and Data for the Complaint
For the complaint to be effective and processed quickly, it is crucial to provide complete and accurate information. Make sure you have the following on hand:
- The shipping code (waybill), which is essential for tracking the package.
- The sender and recipient details (name, last name, full address, and contact information).
- The shipping date.
- A detailed description of the contents of the package and, in case of loss or damage to insured shipments, proof of its value (such as invoices or receipts).
- In case of damage, it is crucial to report it specifically at the time of delivery, if possible, and document everything with photographs.
- The shipping code (waybill), which is essential for tracking the package.
- The sender and recipient details (name, last name, full address, and contact information).
- The shipping date.
- A detailed description of the contents of the package and, in case of loss or damage to insured shipments, proof of its value (such as invoices or receipts).
- In case of damage, it is crucial to report it specifically at the time of delivery, if possible, and document everything with photographs.
- The shipping code (waybill), which is essential for tracking the package.
- The sender and recipient details (name, last name, full address, and contact information).
- The shipping date.
- A detailed description of the contents of the package and, in case of loss or damage to insured shipments, proof of its value (such as invoices or receipts).
- In case of damage, it is crucial to report it specifically at the time of delivery, if possible, and document everything with photographs.
What to Expect After Submitting the Complaint
Once the complaint is submitted, Poste Italiane commits to providing a response within a set maximum timeframe, which according to the Service Charter is 45 days. During this period, the company will conduct internal checks to locate the package or determine the cause of the issue. The outcomes can vary: the package is found and put back into delivery, or, in case of confirmed loss or damage, Poste Italiane may offer compensation. The amount of the refund depends on the type of shipping service purchased (standard, insured, etc.). If the response is not satisfactory or does not arrive within the specified timeframe, you can initiate a conciliation procedure.
In Brief (TL;DR)
Discover the official procedures and useful contacts for filing a complaint with Poste Italiane for delays, losses, or damages to packages handled by the CMP Milan Roserio sorting center.
In this guide, you’ll find the official procedures and useful contacts for submitting a complaint for delays, losses, or damages.
Learn how to contact customer service, which forms to fill out, and the procedures to follow to start your claim.
Conclusion

Dealing with a problem involving a shipment stuck at the CMP Milan Roserio can be complex, but knowing the correct procedure makes all the difference. The first step is always to check the tracking, followed by a reasonable waiting period. If the problem persists, it is essential to file a formal complaint through the official channels of Poste Italiane, providing all necessary documentation accurately and completely. Although it is not possible to contact the sorting center directly, the centralized procedure is designed to handle investigations in a structured manner. Acting methodically and patiently, using the tools available, is the best strategy to resolve the issue and, if necessary, obtain fair compensation.
Frequently Asked Questions

If online tracking shows your package is “in processing” at the CMP Milan Roserio, it means it is at the sorting center and is about to be directed to its final destination. This is usually a normal part of transit. However, if the stop lasts for many days beyond the expected delivery time, it is advisable to file a report with Poste Italiane, as it could indicate a problem or an unusual delay.
No, it is not possible for a private citizen to contact the CMP Milan Roserio directly for information on individual shipments or to pick up a package. Postal Mechanization Centers are industrial logistics facilities not open to the public. Any request for information or complaint must be handled through the official customer assistance channels of Poste Italiane.
To file a complaint with Poste Italiane, you can choose several methods: online, by filling out the appropriate form on the official website; by phone, by calling the toll-free number 803.160 (from a landline) or the paid numbers for mobile networks; at any post office, by filling out the paper complaint letter; by sending a Certified Email (PEC) to reclamiretail@postecert.it or a registered letter with acknowledgment of receipt to Casella Postale 160, 00144 Rome (RM). It is essential to provide the shipping code and all useful details.
To submit an effective complaint, you will need: the shipping code (tracking number), the complete details of the sender and recipient, the shipping date, and a clear description of the problem (delay, loss, damage). It is very helpful to also attach the shipping receipt (waybill) and, in case of damage or loss, a detailed description of the contents and any proof of its value.
Poste Italiane is required to provide a response to the complaint within 45 days of its receipt. If the response does not arrive or is not satisfactory, you can initiate a conciliation procedure. This can be activated through consumer associations or via the ConciliaWeb platform of AGCOM (the Italian Communications Regulatory Authority), which offers an online tool for resolving disputes between users and postal operators.




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