 
            Hi Mark,
- Since this post in July, I've been trying to work with EMWD to get the cc's blocked. I've tried every rule configuration in the Header Filter to no avail. EMWD can't seem to help. The setting options are as follows:
Acceptable aliases
This is a list, one per line, of addresses and regexps matching addresses that are acceptable in To: or Cc: in lieu of the list posting address when 'require_explicit_destination' is enabled. Entries are either email addresses or regexps matching email addresses.Regexps are entries beginning with '^ and are matched against every recipient address in the message. The matching is performed with Python's re.match () function, meaning they are anchored to the start of the string.
- Require Explicit Destination (this is a checked box. Could it be interfering with the Header filters?)
This checks to ensure that the list posting address or an acceptable alias explicitly appears in a To: or Cc: header in the post.
- Default action to take when a member posts to the list
Accept immediately (bypass other rules) Default action to take when a member posts to the list. Hold: This holds the message for approval by the list moderators. Reject: this automatically rejects the message by sending a bounce notice to the post's author. The text of the bounce notice can be configured by you. Discard: this simply discards the message, with no notice sent to the post's author. Accept: accepts any postings without any further checks. Default Processing: run additional checks and accept the message. NOTE - when set here, all members are blocked.
- We also have the problem of large image file sizes being let through no matter what setting we have. We have it set to 500KB, but everything is accepted.
Maximum message size 500 The maximum allowed message size in KB. This can be used to prevent emails with large attachments. A size of 0 disables the check.
Perhaps some settings are over-riding others?
What do you think?
Best, Cathryn