Allow Notes Client to render multipart/alternative message even if MIME source is not fully valid

Currently in Notes Client, if we receive the multipart/alternative message like below where the multiple MIME parts are not provided but only single MIME part is provided.

Content-Type: multipart/alternative;

text/html part

Here you can notice that, another alternative MIME part like "text/plain" is missing.

This MIME source has been incorrectly generated from sender side because there is only single part provided for multipart/alternative message which is wrong. Notes Client will not render this message and blank body is shown.

So there is a feature request to render the MIME parts of invalid MIME source where only single part is provided instead of multiple parts or Content ID is missing, so that user will be at least able to see it in the body instead of blank body.

We can show a warning at top line about invalid MIME source and it may not be rendered correctly.

This Enhancement Request is submitted for Notes Client 12.0.2