Re: Recent courier versions rejects messag es with "Invalid base64 encoding"

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--===============7748723588633259439==
Content-Type: multipart/signed;
    boundary="=_ripper.email-scan.com-10073-1769779885-0001";
    micalg=pgp-sha1; protocol="application/pgp-signature"
Content-Transfer-Encoding: 8bit

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--=_ripper.email-scan.com-10073-1769779885-0001
Content-Type: text/plain; format=flowed; delsp=yes; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Hanno B=C3=B6ck writes:

>   Content-Transfer-Encoding: binary
> and
>   Content-Type: multipart/mixed; boundary=3D"=3Dsomeboundary"
>
> This did not appear in earlier courier versions. Notably, 1.4.1 is
> unaffected, 1.5.1 and 1.6.0 is affected.

This is because of the new MIME parser, which does not understand this.

> From what I can tell reading the RFC, this should not be an invalid
> combination:
> https://www.ietf.org/rfc/rfc2045.html#section-6.4
> 'If an entity is of type "multipart" the Content-Transfer-Encoding is
> not permitted to have any value other than "7bit", "8bit" or "binary".'

This will be fixed.


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--=_ripper.email-scan.com-10073-1769779885-0001--


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Content-Disposition: inline


--===============7748723588633259439==
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