This bugfix adresses several bugs in MailHost. Some of these bugs are fixed in Zope 2.4.0 and later and some of the are valid for all versions of Zope.

1. MailHost now removes the rfc822 Bcc-tag before sending the mail, so the recipients can not see it.
2. If mto or mfrom is specified and the message doesn't have the corresponding header, the header is added to the message.
3. Added headers now has the proper case, i e "To: / From:" not "to: / from:".
4. scheduledSend() now is just another name for send() since they had no significant differences.
5. If you are still using Zope 2.3 this will no longer break the message header when specifying a subject with send(). This bug is however also fixed in later versions of Zope.

The 1.4 version is a "monkeypatch" made for Zope 2.3. It might work with Zope 2.4-2.5.1, but that is not tested.

The 2.5.1 version is made for Zope 2.5.1, but will most likely work with Zope 2.4.0 and later. It is not a monkey patch but is a complete replacement.

Install the fix by unzipping the file in lib/python/Products. Do not install both fixes on the same Zope instance as this at best is redundant, but most likely will break MailHost completely.

These fixes will be included in Zope 2.6 and later.