In January 1997, Microsoft introduced MS Outlook with Office 97. It is a personal information manager. Although often used as a desktop email application. Microsoft uses OST (Offline Storage Table) and PST (Personal Storage Table) as data files. These data files store entire data on the local machines.
Mozilla Thunderbird is an open-source cross-platform email client developed by the Mozilla Foundation. It has some advanced features like quick search folders, message grouping, advanced message filtering, etc. This email client supports add-ons extensions that provide additional functionality.
Microsoft Outlook is a personal information manager and mainly used as an email application, which includes emails, calendars, contacts, tasks, journals, etc. Microsoft introduced the first Outlook version in 1997, included in Office 97, and bundled with Exchange Server 5.5.
Microsoft provides amazing email systems such as Windows Live Mail and Outlook. Both platforms have different file formats, for example, Windows Live Mail supports EML and Outlook supports PST file format. So, if you want to switch from Live Mail to Outlook, then you need to convert EML files into PST file format.
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MS Outlook and Exchange Server are the two most powerful products developed by Microsoft Inc. Both provide one of the best e-communication environment and support each other to keep the communication smooth. All the communication data save into the exchange server.
Mozilla Thunderbird is a popular open-source email client. It is a cross-platform email client, which is generally used by Windows, Linux, and Mac users. It allows you to use multiple email accounts by using IMAP and POP3 servers. Thunderbird, by default, stores all emails in the MBOX file format inside the Thunderbird profile.
MS Outlook is one of the best personal information managers from Microsoft, but many users use it as a desktop application. It creates two types of files OST and PST. These file stores all data. When you connect Outlook with the MS Exchange server, then all data saved into the exchange server.
An OST (Offline Storage Table) file is an offline Outlook data file. This file allows users to work offline, and afterward, file synchronizes automatically with the exchange server. In MS Office 365, Exchange, or Outlook.com account, the data is stored in the OST data file. These data files are dependable.
The MBOX file format is used by well-known windows and Mac based email clients. It is a unique file that saves emails in the text file format and attachments in an encoded file format. MBOX is a platform-dependent format used by well-known mail clients like Apple Mail, Thunderbird, Eudora, and more.
OST file is the MS Outlook offline folder file. This offline folder makes it possible for users to work in offline mode with no Internet connectivity. It is a local cache of the MS Exchange account and syncs automatically to the Exchange Server as soon as the Internet connection is available.