[Mimedefang] suspicious characters

[David F. Skoll]

On Tue, 14 May 2002, Steve Ladendorf wrote:

> What is the exact definition of a suspicious character in the body or
> header

In the header:  A carriage-return NOT followed by a newline.

In the body:  A carriage-return NOT followed by a newline, OR a NUL character
(a zero byte.)

We don't check for NUL's in headers because Sendmail's Milter API has
no way to convey embedded NUL's in headers.

> and is there any way to change what MIMEDefang thinks is
> suspicious?

Not without editing C code.  If it only seems to happen for mailing-list
messages, then (cautiously) skip the suspicious-checks based on $Sender or
$RelayAddr.

Regards,

David.