Optional ReadonlydisplayThe display name, with RFC 2047 encoded-words decoded, when the address carried one and it is not empty.
It never contains a control character or a Unicode line separator.
ReadonlydomainThe domain, in lowercase ASCII form, or the domain literal including its brackets. Internationalized domains are converted to their Punycode (A-label) form.
ReadonlylocalThe local part, without quoting or comments.
Quoting is presentation: "john.doe"@example.com and
john.doe@example.com denote the same mailbox (RFC 5321 section 4.1.2),
so the delimiters are removed here and re-added only when the value cannot
be expressed as a dot-string.
A parsed, normalized mailbox address.
Instances are plain immutable data: every field is
readonly, nothing is lazily computed or retained from the input, and a value can be stored, compared, shared across tasks, or serialized without aliasing anything the parser still holds.