>> It seems there may be some header clowns in the loop in this mailing list,
>> though, that modify the email headers -- at least this is what Howard says
>> (his email coming back to him from the list having different headers than
>> the email he sends out). If this is true, this is not nice.
> 
> Indeed, and in the fragment of the header with the changed encoding type, that I posted, MIT even owned up to 
> it!  :-)  
> 
> Further checking has revealed that when I send a message that hasn't got any 8-bit characters in it, my email 
> program sends the message tagged as "7-bit".  If there are any 8-bit characters, it sends it 
> "quoted-printable".  
> 
> It is in the latter case that MIT changes it to "8-bit".

It doesn't do this always, though. For example, it leaves mine alone.

It seems to do it when it finds an 8-bit character in the stream. Do you
have a way to check your raw source (what you send), maybe with a hex
editor? Any chance that there is an 8-bit character in there, even after
encoding it quoted-printable?

Gerhard
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