The email address being represented by the object. This is a Mailbox as used in the
Reverse-path or Forward-path of the MAIL FROM or RCPT TO command in
RFC 5321.
OptionalparametersAny parameters to send with the email address (either mail-parameter or rcpt-parameter
as appropriate, as specified in RFC 5321).
If supplied, each key in the object is a parameter name, and the value is either the
parameter value (type String) or null if the parameter does not take a value.
An Address object used in the Envelope for SMTP submission.
See
RFC 8621 Section 7: Email Submission