Outgoing e-mail header details

Hi!
Some small details are missing from the outgoing mail headers to make them look better in the e-mail clients:
-Proper encoding of the 'From' field to work with accented characters.
-The user's company added as an organization.
-Date sent is needed, othewise sorting by date in the client puts these mails as the oldest.

The code is here:
from email.utils import formatdate
from email.header import Header

sender_name = Header(core_obj.name, 'utf-8').encode()
msg['From'] = sender_name + " <" + core_obj.email_id + ">"
msg['Organization'] = tools.ustr(core_obj.user.company_id.name)
msg['Date'] = formatdate()