File Extension Search

.p7s File Extension

Developer: N/A
File type: Digitally Signed Email Message
You're here because you have a file that has a file extension ending in .p7s. Files with the file extension .p7s can only be launched by certain applications. It's possible that .p7s files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .p7s file?

Files with the .p7s extension are email messages used in email management programs for sending, receiving or just simply viewing secure emails encrypted with digital signatures. Some of these email management applications include Microsoft Outlook 2010, PostBox and Mozilla Thunderbird. This means these email management programs support the encryption and decryption of email messages in the P7S format. Files with the P7S extension also contain details including the source of the email and whether the email has been edited or modified during transmission, which means users with these email management applications integrated with P7S support can ensure that the emails they receive are legitimate, are originating from trusted senders and are untampered with, before they open and view the emails. If a user's email management software does not have P7S or email digital signature support, emails encrypted with this technology may be sent as attachments, usually displayed as smime.p7s, and these email programs integrate Public-Key Cryptography Standard #7 or PKCS #7 technology for digitally affixing encrypted signatures to email messages.

how to open a .p7s file?

Launch a .p7s file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .p7s file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .p7s files aren't yet associated with it. In this case, when you try to open a .p7s file, you can tell Windows which application is the correct one for that file. From then on, opening a  .p7s file will open the correct application. Click here to fix .p7s file association errors

applications that open a .p7s file

Mozilla Thunderbird

Mozilla Thunderbird

Thunderbird is a free, open source email, newsgroup, news feed and chat (XMPP, IRC, Twitter) client created by the Mozilla Foundation. The project stratagem is modeled after Mozilla Firefox, a project aimed at generating a Web browser. The vanilla version is not a personal information manager, although the Mozilla Lightning extension adds PIM functionality. Additional features, if desired, are often available thru other extensions. It supports UNIX mailbox format (mbox), Mork which is utilized for internal database and SQLite also used for internal database (since version 3). Files that bear the .p7s extension are email messages utilized in email managing programs for sending, receiving or just simply viewing protected emails encrypted with digital signatures. Some of these email management applications include Microsoft Outlook 2010, PostBox and Mozilla Thunderbird. These files contain information as well as the source of the email and whether the email has been edited or modified during transmission, which means users with these email management applications incorporated with P7S support can make sure that the emails they receive are genuine, are originating from trusted senders and are not tampered with, before they open and view the emails.
Outlook Express

Outlook Express

MSG file is an Outlook Message File created using Microsoft Outlook containing details of an email such as date, sender’s name, recipient’s name, body of the message, and is compatible with other applications using MAPI [Messaging Applications Programming Interface]. Aside from Microsoft Outlook, other programs that can open MSG files are EZ Freeware Free Opener, BitDaddys Email Open View Pro and Encryptomatic MsgViewer Pro for Windows system, Kupon.BG Klammer for iOS and Mac OS, and 45RPM MailRadier for Mac. Microsoft Outlook is a feature of Microsoft Office. The latest versions are Microsoft Outlook 2010 for Windows and Microsoft Outlook 2011 available for Mac users. The main use of this software is for email purposes that includes to create, send, reply to and forward an email message, open and save file attachments in an email, create and add an email signature. Other features include Calendar that allows you to make appointments and set meetings with other people, Contacts, Tasks and Notes and Print [to print emails, calendar entries, tasks and contacts].
PostBox

PostBox

The users system must be running with winxp SP2, winvista, win7, MAC OS X 10.6 or later versions of MAC OS X in order to install PostBox. In addition, PostBox requires the following necessities: 2 GB RAM, 200 MB Hard Drive, and Pentium 4 1.5 Ghz. Windows operating system must be 32 bit in order for this software to work. PostBox can support emails, some social media activities and other applications in your Internet browsers. This software is created by PostBox Inc. to organize Internet activities in one application. This can coordinate with DropBox as well. This enables users to send links instead of large bulk of files. PostBox has an advance features in previewing pictures attached to your emails. PostBox can update status in the users’ social media accounts such as Facebook, LinkedIn and Twitter. IMAP and POP email accounts are supported by PostBox like Gmail, AOL, Dreamhost, Comcast, Hotmail, Yahoo, iCloud and so on.

a word of warning

Be careful not to rename the extension on .p7s files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .p7s. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.

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