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  2. 2021 Microsoft Exchange Server data breach - Wikipedia

    en.wikipedia.org/wiki/2021_Microsoft_Exchange...

    A global wave of cyberattacks and data breaches began in January 2021 after four zero-day exploits were discovered in on-premises Microsoft Exchange Servers, giving attackers full access to user emails and passwords on affected servers, administrator privileges on the server, and access to connected devices on the same network.

  3. History of Microsoft Exchange Server - Wikipedia

    en.wikipedia.org/wiki/History_of_Microsoft...

    Initial release: May 23, 1997. Introduced the new Exchange Administrator console, as well as opening up "integrated" access to SMTP-based networks for the first time.. Unlike Microsoft Mail (which required a standalone SMTP relay), Exchange Server 5.0 could, with the help of an add-in called the Internet Mail Connector, communicate directly with servers using

  4. Microsoft Exchange Server - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Exchange_Server

    Microsoft Exchange Server uses a proprietary remote procedure call (RPC) protocol called MAPI/RPC, [13] which was designed to be used by Microsoft Outlook. Clients capable of using the proprietary features of Exchange Server include Evolution, [14] Hiri and Microsoft Outlook. Thunderbird can access Exchange server via the Owl Plugin. [15]

  5. Fix sending and receiving issues with third-party email apps

    help.aol.com/articles/cant-send-or-receive-email...

    If your account is working on a web browser and you made sure you're using the right server settings, then update your email app to the newest version available. If you're still experiencing issues with your app, contact the manufacturer. Also, access your AOL Mail on a web browser. Keep in mind - For two-step verification, generate an app ...

  6. 2024 CrowdStrike incident - Wikipedia

    en.wikipedia.org/wiki/2024_CrowdStrike_incident

    Microsoft blamed a 2009 antitrust agreement with the European Union that they said forced them to sustain low-level kernel access to third-party developers. [ 284 ] [ 285 ] [ 286 ] The document does not explicitly state that Microsoft has to provide kernel-level access, but says Microsoft must provide access to the same APIs used by its own ...

  7. Hafnium (group) - Wikipedia

    en.wikipedia.org/wiki/HAFNIUM_(group)

    Microsoft named Hafnium as the group responsible for the 2021 Microsoft Exchange Server data breach, and alleged they were "state-sponsored and operating out of China". [3] [4] According to Microsoft, they are based in China but primarily use United States-based virtual private servers, [6] and have targeted "infectious disease researchers, law firms, higher education institutions, defense ...

  8. MAPI - Wikipedia

    en.wikipedia.org/wiki/MAPI

    MAPI uses functions loosely based on the X.400 XAPIA standard. It includes facilities to access message transports, message stores, and directories.. While Simple MAPI (SMAPI) is a subset of 12 functions which enable developers to add basic messaging functionality, Extended MAPI (EMAPI) allows complete control over the messaging system on the client computer.

  9. List of SMTP server return codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SMTP_server_return...

    X.3.XXX Mail System Status. X.4.XXX Network and Routing Status. X.5.XXX Mail Delivery Protocol Status. X.6.XXX Message Content or Media Status. X.7.XXX Security or Policy Status. The meaning of the "detail" field depends on the class and the subject, and are listed in RFC 3463 and RFC 5248. A server capable of replying with an Enhanced Status ...