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  2. List of SMTP server return codes - Wikipedia

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

    A "Basic Status Code" SMTP reply consists of a three digit number (transmitted as three numeric characters) followed by some text. The number is for use by automata (e.g., email clients) to determine what state to enter next; the text ("Text Part") is for the human user. The first digit denotes whether the response is good, bad, or incomplete:

  3. PMD (software) - Wikipedia

    en.wikipedia.org/wiki/PMD_(software)

    PMD is able to detect flaws or possible flaws in source code, like: Bugs—Empty try/catch/finally/switch blocks. Dead code—Unused local variables, parameters and private methods. Empty if/while statements. Overcomplicated expressions—Unnecessary if statements, for loops that could be while loops.

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.

  5. List of HTTP header fields - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_header_fields

    Tells downstream proxies how to match future request headers to decide whether the cached response can be used rather than requesting a fresh one from the origin server. Example 1: Vary: * Example 2: Vary: Accept-Language; Permanent RFC 9110: Via: Informs the client of proxies through which the response was sent. Via: 1.0 fred, 1.1 example.com ...

  6. List of FTP server return codes - Wikipedia

    en.wikipedia.org/.../List_of_FTP_server_return_codes

    The server-FTP process may send at most, one 1xx reply per command. 2xx: Positive Completion reply The requested action has been successfully completed. A new request may be initiated. 3xx: Positive Intermediate reply The command has been accepted, but the requested action is being held in abeyance, pending receipt of further information.

  7. Server-sent events - Wikipedia

    en.wikipedia.org/wiki/Server-sent_events

    Server-Sent Events (SSE) is a server push technology enabling a client to receive automatic updates from a server via an HTTP connection, and describes how servers can initiate data transmission towards clients once an initial client connection has been established. They are commonly used to send message updates or continuous data streams to a ...

  8. Manage conversations in AOL Mail

    help.aol.com/articles/manage-conversations-in...

    Delete a single email. Click on the conversation where the email is located. Click the More Icon | click Delete Message. Delete a full conversation. Locate the thread you want to delete. Click in the box to the left of the message. Click Delete at the top of your Inbox.

  9. Email storm - Wikipedia

    en.wikipedia.org/wiki/Email_storm

    An email storm (also called a reply all storm, sometimes reply allpocalypse, or more generally a notification storm) is a sudden spike of "reply all" messages on an email distribution list, usually caused by a controversial or misdirected message. Such storms can start when even one member of the distribution list replies to the entire list at ...