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  2. 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 ...

  3. Ratchet (device) - Wikipedia

    en.wikipedia.org/wiki/Ratchet_(device)

    A ratchet consists of a round gear or a linear rack with teeth, and a pivoting, spring-loaded finger called a pawl (or click, in clocks and watches [1] [2]) that engages the teeth. The teeth are uniform but are usually asymmetrical , with each tooth having a moderate slope on one edge and a much steeper slope on the other edge.

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    As the HTTP/1.0 standard did not define any 1xx status codes, servers must not [note 1] send a 1xx response to an HTTP/1.0 compliant client except under experimental conditions. 100 Continue The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be ...

  5. US to stop advance payments for Medicare providers hit by ...

    www.aol.com/news/us-shut-advance-payments...

    The program has issued accelerated payments totaling more than $2.55 billion to over 4,200 providers, including hospitals, CMS said. It also made 4,722 advance payments, totaling more than $717.18 ...

  6. Double Ratchet Algorithm - Wikipedia

    en.wikipedia.org/wiki/Double_Ratchet_Algorithm

    The first "ratchet" is applied to the symmetric root key, the second ratchet to the asymmetric Diffie Hellman (DH) key. [1] In cryptography, the Double Ratchet Algorithm (previously referred to as the Axolotl Ratchet [2] [3]) is a key management algorithm that was developed by Trevor Perrin and Moxie Marlinspike in 2013.

  7. Stuffed or real? Photos show groundhog stuck inside ... - AOL

    www.aol.com/stuffed-real-photos-show-groundhog...

    A Pennsylvania State Game Commission warden responded to Meadows Family Fun Mini Golf in Duncansville, Pennsylvania after employees in August 2024 reported finding a groundhog stuck in a clam ...

  8. Postage is going up again. You should care, even if you don’t ...

    www.aol.com/postage-going-again-care-even...

    In its most recent year, the service delivered 11.4 billion individual letters. That may sound like a lot, but it’s down 75% from 20 years ago. While stamp prices have doubled in that time, most ...

  9. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens. Alternatively, sirens may be used if necessary ...