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Sender Policy Framework (SPF) is an email authentication method that ensures the sending mail server is authorized to originate mail from the email sender's domain. [1] [2] This authentication only applies to the email sender listed in the "envelope from" field during the initial SMTP connection.
In the early 1980s, when Simple Mail Transfer Protocol (SMTP) was designed, it provided for no real verification of sending user or system. This was not a problem while email systems were run by trusted corporations and universities, but since the commercialization of the Internet in the early 1990s, spam, phishing, and other crimes have been found to increasingly involve email.
In computing, Open Data Protocol (OData) is an open protocol that allows the creation and consumption of queryable and interoperable Web service APIs in a standard way. ...
Various anti-spam techniques are used to prevent email spam (unsolicited bulk email).. No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) as opposed to not rejecting all spam email (false negatives) – and the associated costs in time, effort, and cost of wrongfully obstructing good mail.
Sun protection factor, of sunscreen; Specific-pathogen-free, laboratory animals known to be without pathogens; Superplastic forming, of sheet metal; Space Power Facility, a NASA test facility
SPF/PC is an MS-DOS-based text editor and file manager designed to have an interface that was familiar to those using mainframe SPF and ISPF. [1] Later Microsoft Windows-based versions were named SPF/SE and SPF/SE 365. [2] A version for OS/2 named SPF/2 was also offered. [3]
The Security Policy Framework (or "SPF") is a set of high-level policies on security, mainly affecting the UK government and its suppliers. [1] [2] The structure has changed over time. Version 11 was published in October 2013; it has 20 "Mandatory Requirements" grouped into four policy areas.
Salesforce Tower Chicago (initially named Wolf Point South Tower during construction) is a skyscraper at Wolf Point in downtown Chicago. It is the tallest and last built of a three tower megadevelopment partly owned by the Kennedy family. [2] The 835 ft (255 m)-tall [1] tower was designed by Pelli Clarke and was completed in 2023. [3]