Question about '50-user' setting

[Tyler Montney]

Perhaps this goes outside scope, but I'm having a bit of a tough time
wrapping my head around this.
It almost seems like this refers to encoding, but I've seen references that
say the server doesn't need
to support any encoding. I've yet to find an example (ideally visual) of
what 7bitmime and 8bitmime look like side-by-side.
Does this conversion apply to parts of the email or the whole message?

https://cr.yp.to/smtp/8bitmime.html is quite strong on the matter. Seems to
suggest just about all servers
don't need the conversion. I assume conversion would result in the loss of
information and would not be ideal.

On Fri, Oct 15, 2021 at 4:39 AM Benny Pedersen <me at junc.eu> wrote:

> On 2021-10-15 05:13, Tyler Montney wrote:
> > What does “force MTA conversion to 7-bit (e.g. before DKIM
> > signing)” mean?
>
> if dkim signs 8bit mime it could be unstable on verify, so to make it
> more safe on verify dkim it is preprossed to only support 7bitmime, with
> in turn make dkim signer only see 7bit data, with on its own does not
> need data changes before dkim signing
>
> safety is 7bit only, all else is 8bitmime
>
>
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