Hi,
I just use Roundcube 1.2.1.
When I displyed a multipart message on Roundcube, the message can't be displayed correctly.
That mail's MIME structure is below.
-----------------------------------------------------------------------------------
Content-Type: multipart/related; boundary="----=_Part_2193_13489836.1459815144541"
----=_Part_2193_13489836.1459815144541
Content-Type: multipart/alternative; boundary="----=_Part_2194_29945346.1459815144541"
----=_Part_2194_29945346.1459815144541
Content-Type: text/plain; charset=UTF-8
body A
----=_Part_2194_29945346.1459815144541
Content-Type: text/html; charset=UTF-8
body B
----=_Part_2194_29945346.1459815144541
----=_Part_2193_13489836.1459815144541
-----------------------------------------------------------------------------------
I suppose that it is the message handling issue of inside multipart message.
Please confirm the attached sample eml and image file.
Regards,
Tomokazu