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A receiving SMTP server wanting to verify uses the domain name and the selector to perform a DNS lookup. [8] For example, given the example signature above: the d tag gives the author domain to be verified against, example.net ; the s tag the selector, brisbane. The string _domainkey is a fixed part of the specification.
e. The Domain Name System ( DNS) is a hierarchical and distributed name service that provides a naming system for computers, services, and other resources on the Internet or other Internet Protocol (IP) networks. It associates various information with domain names (identification strings) assigned to each of the associated entities.
A mailbox value can be either a name-addr, which contains a display-name and addr-spec, or the more common addr-spec alone. An email address, such as john.smith@example.com, is made up from a local-part, the symbol @, and a domain, which may be a domain name or an IP address enclosed in brackets.
The Domain Name System Security Extensions ( DNSSEC) are a suite of extension specifications by the Internet Engineering Task Force (IETF) for securing data exchanged in the Domain Name System ( DNS) in Internet Protocol ( IP) networks. The protocol provides cryptographic authentication of data, authenticated denial of existence, and data ...
The Public Suffix List is intended to enumerate all domain suffixes controlled by registrars, as well as those controlled privately such as github.io. [8] An internet site consists of the online resources which can be controlled by the registrant of a domain name. That includes resources available via the domain and all its sub-domains.
An Author Domain Signature is a valid DKIM signature in which the domain name of the DKIM signing entity, i.e., the d tag in the DKIM-Signature header field, is the same as the domain name in the author address. This binding recognizes a higher value for author domain signatures than other valid signatures that may happen to be found in a message.
Unicode support in message header. To use Unicode in certain email header fields, e.g. subject lines, sender and recipient names, the Unicode text has to be encoded using a MIME "Encoded-Word" with a Unicode encoding as the charset. To use Unicode in domain part of email addresses, IDNA encoding must traditionally be used.
An annotated example of a domain name. In the Internet, a domain name is a string that identifies a realm of administrative autonomy, authority or control. Domain names are often used to identify services provided through the Internet, such as websites, email services and more. Domain names are used in various networking contexts and for ...