[Mimedefang] $SuspiciousCharsInHeaders
David F. Skoll
dfs at roaringpenguin.com
Thu Feb 21 12:37:13 EST 2002
Hi, Vincent.
On 21 Feb 2002, Vincent Jaussaud wrote:
> Here you go. :-)
[And sent a gzipped version of the message]
The message contained the following header:
X-Mailer: SMRmail - ^_tiscon AG Infosystems^M^J
where "^_" is the ASCII character 0x1F. Here's an excerpt of the
octal dump:
0001400 61 69 6c 20 2d 1f 74 69 73 63 6f 6e 20 41 47 20
a i l sp - us t i s c o n sp A G sp
It is that control character which upset MIMEDefang. Control
characters like 0x1F are legal in mail headers according to
RFC2822, so I will loosen up the tests to look for embedded NUL's and
CR's only.
Regards,
David.
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