On Mon, Sep 04, 2023 at 05:08:15PM -0400, Wietse Venema via Postfix-users wrote:
> Viktor Dukhovni via Postfix-users:
> > On Mon, Sep 04, 2023 at 12:18:38PM -0400, Viktor Dukhovni via Postfix-users
> > wrote:
> >
> > > It is best to enable this for outbound mail only, i.e. messages that
> > >
Viktor Dukhovni via Postfix-users:
> On Mon, Sep 04, 2023 at 12:18:38PM -0400, Viktor Dukhovni via Postfix-users
> wrote:
>
> > It is best to enable this for outbound mail only, i.e. messages that
> > arrive on the submission ports or through local submission via
> >
On Mon, Sep 04, 2023 at 12:18:38PM -0400, Viktor Dukhovni via Postfix-users
wrote:
> It is best to enable this for outbound mail only, i.e. messages that
> arrive on the submission ports or through local submission via
> sendmail(1)->postdrop(1)->pickup(8). That way, inbound 8bit mail will
>
On Mon, Sep 04, 2023 at 11:43:06AM -0400, Wietse Venema via Postfix-users wrote:
> This is now included with the Postfix 3.9 development release (i.e.
> it will be part of the Postfix 3.9 stable release early 2024. I
> changed the name for clarity, and the updated manpage text is below.
>
>
Tinne11:
> Is there some parameter which could have been named
> enforce_mime_output_conversion in analogy to disable_mime_output_conversion
> or some other way to configure this?
Wietse Venema:
> Presently, MIME downgrade is an after-queue feature (i.e. after
> mail is queued), implemented only
> This feature is available in Postfix >= 3.9.
Great!
And Thanks a lot, Wietse and Victor, for all the advice that help right now.
Cheers
Stephan
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On Tue, Jul 18, 2023 at 06:37:08PM -0400, Wietse Venema via Postfix-users wrote:
> Turns out that this required very little code (basically one boolean
> configuration parameter that controls a bitfield flag that is input
> to the Postfix MIME processor. Preliminary manpage text is below.
Cool!
Wietse Venema via Postfix-users:
> Tinne11 via Postfix-users:
> > Is there some parameter which could have been named
> > enforce_mime_output_conversion in analogy to disable_mime_output_conversion
> > or some other way to configure this?
>
> It would avoid the need for (null) content filters
On Tue, Jul 18, 2023 at 11:29:20AM -0400, Wietse Venema via Postfix-users wrote:
> This can work with the 'advanced' example in FILTER_README:
>
> main.cf:
> content_filter = smtp-7bit:127.0.0.1:10025
>
> master.cf:
> smtp-7bit .. .. .. .. .. .. smtp
>-o {
Tinne11 via Postfix-users:
> Is there some parameter which could have been named
> enforce_mime_output_conversion in analogy to disable_mime_output_conversion
> or some other way to configure this?
It would avoid the need for (null) content filters that I discuss
in my other response. However
Viktor Dukhovni via Postfix-users:
> On Tue, Jul 18, 2023 at 01:43:46PM +0200, Tinne11 via Postfix-users wrote:
>
> > In order to follow this recommendation, a Postfix MSA (being part of a
> > system DKIM-signing outbound messages) needs to be configured to convert all
> > submitted 8-bit
On Tue, Jul 18, 2023 at 01:43:46PM +0200, Tinne11 via Postfix-users wrote:
> In order to follow this recommendation, a Postfix MSA (being part of a
> system DKIM-signing outbound messages) needs to be configured to convert all
> submitted 8-bit messages to 7-bit (base64 or Quoted-Printable). Is
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