文件與.p7s擴展的電子郵件管理方案用於發送,接收或者只是簡單地查看加密的數字簽名安全電子郵件的電子郵件。有些郵件管理應用程序包括Microsoft Outlook 2010中,郵箱和Mozilla雷鳥。這意味著這些郵件管理程序支持的P7S格式的加密和電子郵件的解密。文件的擴展名P7S也包含信息的郵件,以及是否電子郵件已經被編輯或傳輸,這意味著用戶與集成P7S支持這些電子郵件管理應用程序可以確保他們收到的電子郵件是合法的過程中修改的源代碼,都起源從受信任的發件人,而且未被篡改與他們打開和查看電子郵件之前。如果用戶的電子郵件管理軟件不具備P7S或電子郵件的數字簽名支持,電子郵件加密這種技術可以作為附件發送,通常顯示為smime.p7s,而這些電子郵件程序集成公鑰加密標準#7或PKCS#7技術進行數字加密粘貼簽名的電子郵件。
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.
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].
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.