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  2. List of SMTP server return codes - Wikipedia

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

    The Internet Assigned Numbers Authority (IANA) maintains the official registry of these enhanced status codes. Common status codes. This section list some of the more commonly encountered SMTP Status Codes. This list is not exhaustive, and the actual text message (outside of the 3-field Enhanced Status Code) might be different.

  3. Microsoft - Wikipedia

    en.wikipedia.org/wiki/Microsoft

    Microsoft Corporation is an American multinational corporation and technology company headquartered in Redmond, Washington. [2] Microsoft's best-known software products are the Windows line of operating systems, the Microsoft 365 suite of productivity applications, and the Edge web browser.

  4. Microsoft Office - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office

    Microsoft Publisher is a desktop publishing app for Windows mostly used for designing brochures, labels, calendars, greeting cards, business cards, newsletters, web sites, and postcards. Microsoft Access is a database management system for Windows that combines the relational Access Database Engine (formerly Jet Database Engine) with a ...

  5. Why did I receive an email from MAILER-DAEMON? - AOL Help

    help.aol.com/articles/what-is-a-mailer-daemon...

    When you get a message from a "MAILER-DAEMON" or a "Mail Delivery Subsystem" with a subject similar to "Failed Delivery," this means that an email you sent was undeliverable and has been bounced back to you.

  6. Microsoft Bing - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Bing

    Microsoft Bing, commonly referred to as Bing, is a search engine owned and operated by Microsoft. The service traces its roots back to Microsoft's earlier search engines, including MSN Search, Windows Live Search, and Live Search. Bing offers a broad spectrum of search services, encompassing web, video, image, and map search products, all ...

  7. Small businesses are racking up credit card debt, raising ...

    www.aol.com/finance/small-businesses-racking...

    Since 2019, small business credit card balances are up 18%, according to aggregated and anonymized data. "While rising credit card balances could raise some concerns, we note a few reasons to be ...

  8. X.400 - Wikipedia

    en.wikipedia.org/wiki/X.400

    An X.400 address is technically referred to as an Originator/Recipient (OR) address. It has two purposes: Mailbox identification – either the originator or recipient. Global domain identification – where a given mailbox is located. 1984 defined an OR address as an X.400 address that identified where the user is located.

  9. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    GUIs may be implemented with user-level code or by the operating system itself. The software to support GUIs is much more complex than a command line for input and plain text output. GUIs may also require a graphics card, including a graphics processing unit (GPU). Operating system development as a hobby