[Mimedefang] suspicious characters

[Steffen Kaiser]

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On Thu, 5 Oct 2017, Michael Fox wrote:

> I'm trying to understand what triggers the setting of
> $SuspiciousCharsInHeaders and $SuspiciousCharsInBody?  All I can find are
> circular definitions that vaguely mention possible exploits.  But no
> specifics are given.  Before I use either of these, I'd like to understand
> better what constitutes "suspicious" in both cases.

suspicious :=
If header or body has a \r without \n
If the body has an embedded \0

> Do you bounce every message that for which $SuspiciousCharsInHeaders is
> true?

Yep, but haven't triggered long time now.

- -- 
Steffen Kaiser
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