MIME part header (was: SMTP headers)

[email protected] wrote:

> I have noticed that the former sends "attachment" headers
> which don't contain the attachments' contents :
 
> ...
> --------14507F4DC80F4D6511158149340B40B01
> Content-Disposition: attachment; filename="test.txt"
> Content-Transfer-Encoding: 7bit
> 
> Content-Type: Text/Plain
> 
> --------14507F4DC80F4D6511158149340B40B01
> ...

Sounds like a bug, for starters there should be no empty line
before the Content-Type.  

> --------14507F4DC80F4D6511158149340B40B01
> Content-Disposition: attachment; filename="test.txt"
> Content-Transfer-Encoding: 7bit
> 
> Content-Type: Text/Plain
> 
> This is the contents of the file
> --------14507F4DC80F4D6511158149340B40B01

Same issue here, but you said it works for you, so maybe the
bogus empty line is a problem with your UA.
 
> Does anyone know how to force RTEs or MTAs such as sendmail
> to send "attachment" headers of the second kind?

For a plain text US-ASCII part you generally need no header
fields at all (for the default inline disposition).  As you
said you want it as attachment, the minimal header would be:

--------14507F4DC80F4D6511158149340B40B01
Content-Disposition: attachment; filename="test.txt"
 
This is the contents of the file
--------14507F4DC80F4D6511158149340B40B01
Content-Disposition: attachment; filename="verbose.txt"
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=us-ascii
 
This is another file after a more verbose header
--------14507F4DC80F4D6511158149340B40B01

Frank