[rt-users] S/MIME signed emails are detected as non-plaintext

[ms at fv-berlin.de]

Hi,

we're running RT 4.2.5 and have noticed a minor annoyance.

When you send an S/MIME-signed (not encrypted!) mail to RT to create a
ticket, the email body will be added as quoted text because "it's not
plain text". You can click on the quoted text to read it perfectly fine,
but this is still somewhat of an annoyance. Is this behaviour something
I can configure, maybe in a list of acceptable content-types or something?

Such mails may look like this:

MIME-Version: 1.0
Content-Type: multipart/signed;
	protocol="application/x-pkcs7-signature";
	micalg=2.16.840.1.101.3.4.2.1;
	boundary="----=_NextPart_000_001C_01CFBB05.63DBBF10"

This is a multipart message in MIME format.

------=_NextPart_000_001C_01CFBB05.63DBBF10
Content-Type: multipart/related;
	boundary="----=_NextPart_001_001D_01CFBB05.63DBBF10"


------=_NextPart_001_001D_01CFBB05.63DBBF10
Content-Type: multipart/alternative;
	boundary="----=_NextPart_002_001E_01CFBB05.63DBBF10"


------=_NextPart_002_001E_01CFBB05.63DBBF10
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

(The actual message body starts here)