The Poste Italiane (PostaCert) PEC is used by many citizens and businesses, and often delivers signed attachments .p7m. Here's how to open a .p7m file from the Poste Italiane PEC.

Save the attachment from the Poste webmail

P7M Viewer opens a signed .p7m file and reveals the original document in seconds.
P7M Viewer opens a signed .p7m file and reveals the original document in seconds.
Open .p7m files on your phone
Open .p7m files on your phoneGet the free P7M Viewer app for Android — open and share signed files anywhere.Get the App

From Poste's PEC webmail:

1. Access your Poste PEC mailbox from your browser.

2. Open the message with the .p7m attachment.

3. Download the attachment with Save / Download.

Save the attachment from the Poste app

If you receive the PEC on the Poste app on your smartphone:

1. Open the message in the app.

2. Tap the .p7m attachment and save it to Files or share it.

Open the Poste .p7m file

After saving the attachment:

1. Open the Open .p7m tool of P7M Viewer.

2. Upload the file downloaded from Poste.

3. View or download the original document.

No software to install: works in the browser on Windows, Mac, Android and iPhone, and on Android there is the free app.

Frequently asked questions

Does Poste's PEC open .p7m files? Normally the attachment must be saved and opened with a dedicated tool.

Can I open PA invoices and documents? Yes, including invoice `.xml.p7m` files.

Does it cost anything? No, opening a single file is free.

In summary

To open a .p7m file from the Poste Italiane PEC, save the attachment and upload it to P7M Viewer: in a few seconds you read or download the signed document, for free.