Description:

SecureMailHost is a reimplementation of the standard MailHost with some
security and usability enhancements:

* ESMTP login on the mail server based on the MailHost from
http://www.zope.org/Members/bowerymarc

* Start TLS (ssl) connection if possible

* Usage of Python 2.3's email package which has multiple benefits like
easy to generate multi part messages including fance HTML emails and
with images.

* REMOVED
Releases are shipped with a compatibility version of email for older
pythons.

* A new secureSend() method that separates headers like mail to, mail from
from the body text. You don't need to mingle body text and headers any
more.

* Email address validation based on the code form PloneTool for mail from,
mail to, carbon copy and blin carbon copy to prevent spam attacks.
(Only for secureSend()!)

* Message-Id and X-Mailer header generation to lower the spam hit points of
Spam Assassin.

* REMOVED
An async mailer thread is using a new thread to send emails including a
separate Mail class and a MailQueue with auto-backup on the file system.
The separate mail thread will prevent Zope from blocking while connecting
to the external SMTP server.
(Disabled by default)