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  2. Regular expression - Wikipedia

    en.wikipedia.org/wiki/Regular_expression

    Regular expressions are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Regular expressions are supported in many programming languages. Library implementations are often called an "engine", [4] [5] and many of these are ...

  3. Email authentication - Wikipedia

    en.wikipedia.org/wiki/Email_authentication

    Email authentication, or validation, is a collection of techniques aimed at providing verifiable information about the origin of email messages by validating the domain ownership of any message transfer agents (MTA) who participated in transferring and possibly modifying a message.

  4. Comparison of regular expression engines - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_regular...

    regex - Henry Spencer's regular expression libraries ArgList: C BSD RE2: RE2: C++ BSD Go, Google Sheets, Gmail, G Suite Henry Spencer's Advanced Regular Expressions Tcl: C BSD RGX RGX : C++ based component library P6R RXP Titan IC: RTL Proprietary: hardware-accelerated search acceleration using RegEx available for ASIC, FPGA and cloud.

  5. ReDoS - Wikipedia

    en.wikipedia.org/wiki/ReDoS

    In the case of a web application, the programmer may use the same regular expression to validate input on both the client and the server side of the system. An attacker could inspect the client code, looking for evil regular expressions, and send crafted input directly to the web server in order to hang it.

  6. Bounce Address Tag Validation - Wikipedia

    en.wikipedia.org/wiki/Bounce_Address_Tag_Validation

    In computing, Bounce Address Tag Validation (BATV) is a method, defined in an Internet Draft, for determining whether the bounce address specified in an E-mail message is valid. It is designed to reject backscatter , that is, bounce messages to forged return addresses.

  7. Icon design - Wikipedia

    en.wikipedia.org/wiki/Icon_design

    The most common and important examples are application icons, used to represent an app on Mac, Windows, Linux, or mobile platforms. These icons rely on unique and memorable metaphors as a form of product branding. Other common uses include favicons, toolbar icons, and icons for buttons or controls.

  8. Use POP or IMAP to sync AOL Mail on a third-party app or ...

    help.aol.com/articles/how-do-i-use-other-email...

    This means that anything you do with messages or folders in your account at mail.aol.com will also occur in the app (and vice versa). Below are the POP and IMAP server settings you'll need to use for AOL Mail and links to common email app setup instructions. If you need specific help configuring your app, contact its manufacturer.

  9. Template:Regex - Wikipedia

    en.wikipedia.org/wiki/Template:Regex

    Normally searches ignore non-alphanumeric characters, but regular expressions (regex) accept all characters, plus metacharacters. This template acts as a doorway by helping to develop a database query before running it on the wiki, and it does this by way of a search link that can also be used to share such discoveries.