Actually use the sendmail SMTPMailer.

src/Products/MailHost/MailHost.py

@@ -49,17 +49,13 @@ from OFS.SimpleItem import Item
 
 from zope.interface import implements
 from zope.sendmail.maildir import Maildir
+from zope.sendmail.mailer import SMTPMailer
 from zope.sendmail.delivery import DirectMailDelivery, QueuedMailDelivery, \
                             QueueProcessorThread
 
 from interfaces import IMailHost
 from decorator import synchronized
 
-# Use our own TLS/SSL-aware mailer since the zope.sendmail does
-# not support TLS/SSL in this version (should be replaced with
-# the next version)
-from mailer import SMTPMailer
-
 queue_threads = {}  # maps MailHost path -> queue processor threada
 
 LOG = logging.getLogger('MailHost')