Hi,

Gonzalo's draft say that, when multipart/alternative is used, different
body parts can not have the same content type.

Below are a couple of use-cases where the same content type is used, and
which may still be feasible for alternative:

1.
 
Let's assume I have two HTML bodies. They both contain the same 
information, but one is "text friendly", while the other contains 
pictures etc. Now, is that alternative or mixed(or parallel)?
 

2.
 
Let's assume I have the same information, but in different languages - 
ie the Content-Language values are different. Is that alternative or 
Mixed(or parallel)?
 


Now, we may not have the expertise to determine whether alternative is
allowed or not in these cases. But, if the think there could be cases
where the same content type would be used for alternative, we need to
allow it.

Regards,

Christer


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