…<utf8-xtra-char>s. Unless otherwise noted, all terms used here are defined in [ RFC2821 ], [ RFC2822 ], [ RFC4952 ], or [ RFC5336 ]. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document a…

…d in this document, the mailbox name is restricted to a subset of 7-bit ASCII [ RFC2821 ]. Though MIME [ RFC2045 ] enables the transport of non-ASCII data, it does not provide a mechanism for internationalized email addresses. In RFC 2047 [ RFC2047 ], MIME defines an encoding mec…

…<utf8-xtra-char>s. Unless otherwise noted, all terms used here are defined in [ RFC2821 ], RFC2822 ], [ RFC4952 ], or [ RFC5336 ]. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are…

…fications form the core: * Simple Mail Transfer Protocol (SMTP) ([ RFC0821 ], [ RFC2821 ], RFC5321 ]) moves a message through the Internet. * Internet Mail Format (IMF) ([ RFC0733 ], [ RFC0822 ], [ RFC2822 ], RFC5322 ]) defines a message object. * Multipurpose Internet Mail Exten…

…d in this document, the mailbox name is restricted to a subset of 7-bit ASCII [ RFC2821 ]. Though MIME RFC2045 ] enables the transport of non-ASCII data, it does not provide a mechanism for internationalized email addresses. In RFC 2047 RFC2047 ], MIME defines an encoding mechani…

…ame. The format of an rfc822Name is a "Mailbox" as defined in Section 4.1.2 of [RFC2821] . A Mailbox has the form "Local-part@Domain". Note that a Mailbox has no phrase (such as a common name) before it, has no comment (text surrounded in parentheses) after it, and is not surroun…

… their communications from eavesdroppers and attackers. 1 . Introduction SMTP [ RFC2821 ] servers and clients normally communicate in the clear over the Internet. In many cases, this communication goes through one or more router that is not controlled or trusted by either entity.…

…t a new requirement; equivalent statements appeared in specifications in 2001 [ RFC2821 ] and even in 1989 [ RFC1123 ]. Adherence to this rule means that a downgrade mechanism that transforms the local part of an email address cannot be utilized in transit. It can only be applied…

…of their communications from eavesdroppers and attackers. 1. Introduction SMTP [RFC2821] servers and clients normally communicate in the clear over the Internet. In many cases, this communication goes through one or more router that is not controlled or trusted by either entity. …

… their communications from eavesdroppers and attackers. 1 . Introduction SMTP [ RFC2821 ] servers and clients normally communicate in the clear over the Internet. In many cases, this communication goes through one or more router that is not controlled or trusted by either entity.…

…ame. The format of an rfc822Name is a "Mailbox" as defined in Section 4.1.2 of [RFC2821] . A Mailbox has the form "Local-part@Domain". Note that a Mailbox has no phrase (such as a common name) before it, has no comment (text surrounded in parentheses) after it, and is not surroun…

…not a new requirement; equivalent statements appeared in specifications in 2001 RFC2821 ] and even in 1989 [ RFC1123 ]. Adherence to this rule means that a downgrade mechanism that transforms the local part of an email address cannot be utilized in transit. It can only be applied…

… Section 4.4. 3. Restrictions on email addresses Reference documents: RFC 2821 [RFC2821] and RFC 2822 [RFC2822] Contemporary email addresses consist of a "local part" separated from a "domain part" (a fully-qualified domain name) by an at-sign ("@"). The syntax of the domain part…

… in Section 4.4 . Restrictions on email addresses Reference documents: RFC 2821 RFC2821 ] and RFC 2822 RFC2822 Contemporary email addresses consist of a "local part" separated from a "domain part" (a fully-qualified domain name) by an at-sign ("@"). The syntax of the domain part …

… in Section 4.4 . Restrictions on email addresses Reference documents: RFC 2821 RFC2821 ] and RFC 2822 RFC2822 Contemporary email addresses consist of a "local part" separated from a "domain part" (a fully-qualified domain name) by an at-sign ("@"). The syntax of the domain part …