In order to send 8-bit data over a 7-bit system it is necessary to encode
that data. This level of abstraction has the downside of said encoding
resulting in an increase in size. The MIME algorithms attempt to contain
this growth but, mathematically, the MIME-encoded message _will_ grow.

About a year ago Andy Webb did some controlled tests on his server to prove
this growth. As I recall his results were to expect file growth of as much
as 40% with the median being around 25-30%. The actual growth will depend
entirely on the data that is being sent; a 10M Powerpoint file will not wind
up the same as a 10M Excel file.

----- Original Message -----
From: "Lefkovics, William" <[EMAIL PROTECTED]>
To: "Exchange Discussions" <[EMAIL PROTECTED]>
Sent: Wednesday, January 16, 2002 11:42 PM
Subject: RE: The message being sent exceeds the message size established f
or t his user


> I doubt that's a fluke.
>
> I had a good explanation of the MIME conversion process at the IMS as
posted
> by Andy Webb about a year ago, but I seem to have lost it.
>
> Among other things.
>
> Regards,
>
> William
>
>
> -----Original Message-----
> From: Jennifer Baker [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 16, 2002 9:31 PM
> To: Exchange Discussions
> Subject: RE: The message being sent exceeds the message size established
> f or t his user
>
>
> Which is why we have a 14 meg limit on the ims and a 10 meg limit on the
> mta.  Does this compute?
>
> -----Original Message-----
> From: Lefkovics, William [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 16, 2002 9:09 PM
> To: Exchange Discussions
> Subject: RE: The message being sent exceeds the message size established f
> or t his user
>
>
> Conversion at the server can add up to 40% (approx) to the message size.
>
> William
>
>
> -----Original Message-----
> From: Van Huissteden, Adriaan [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 16, 2002 9:06 PM
> To: Exchange Discussions
> Subject: The message being sent exceeds the message size established for
> t his user
>
>
> Hi All,
>
> I am getting the bellow error when trying to attach a 1.4 mb Excel
> sheet to an email in outlook 98.   Both the Sender and reviver have a mail
> limit size of 2100KB on your exchange server (NT4.0 EXCHsvr 5.5 SP'd).
>
> "The message being sent exceeds the message size established for this
user"
>
> Why is the message popping up?
>
> Thanks
>
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