The date-time the most recent message was received at this email address, if any.
The name of the client that created this masked email address
A short user-supplied description of what this masked email address is for.
The email address.
Optional
email(create-only) This is only used on create and otherwise ignored; it is not returned when masked email objects are fetched.
The protocol and domain (i.e. origin) of the site the user is using the masked email for.
The id of the masked email address.
The date-time the email address was created.
The current state of the masked email address.
A deep link to the credential or other record related to this masked email
Represents a masked email address.
See
https://www.fastmail.com/developer/maskedemail/