Fields required to edit an existing ZMailMessage instance.
A textural name for the object.
A textural subject for the email.
The date stamped on the email (textural or DateTime object).
Textural information on who the email was sent to.
Usually in the format of an email address.
Textural information on who the email was sent by.
Usually in the format of an email address.
Textural information on who to send your reply to (if different from the to address).
Usually in the format of an email address.
The body of the email message.
All the headers from the email message, including the ones above, in a dictionary of {'headerName':'value'}.