On 29 Oct 2008, at 15:06, paul spandler wrote:
> 2008/10/29 W B Hacker <wbh@???>:
>> Exim is doing precisely what an(y) MTA is supposed to do - NOT
>> whimsically altering the headers, message or attachment content, or
>> encoding of valid smtp message traffic.
>
> This is exactly the sort of response I had hoped to receive. The
> vendor's suggestion seemed contrary to my understanding of what any
> MTA would do (irrespective of the flavour.)
I suspect that although exim is not modifying your message, it is
causing the original sender to modify the message.
And this probably down to 8bit mime.
I suspect you are, like most people, using exim without the
accept_8bitmime option being set
http://docs.exim.org/current/spec_html/ch14.html
The sending host is seeing no 8bit mime being offered, and so is
mangling the message to make it 7 bit clean. I presume if the host
sends directly to your other box, that is offering 8bit mime and so
the mangling is avoided.
It may be possible for you to set accept_8bitmime (exim is 8 bit
clean), but if you are sending to other sites that cannot accept 8bit
mime, then exim won't convert those messages, which may result in
problems.
Nigel.
--
[ Nigel Metheringham Nigel.Metheringham@??? ]
[ - Comments in this message are my own and not ITO opinion/policy - ]