On 23/08/2021 14:02, Jens Hoffrichter wrote:
Hi,
I cannot find a previous discussion about this topic here on the mailing list.
We are running postfix instances for a big corporation, which delivers
to MS Exchange / Exchange online backends. We now have gotten the
requirement to mark all
* Jens Hoffrichter:
> We now have gotten the requirement to mark all e-mails coming from
> external senders to mark in the subjects.
As you suspected, modifying the subject will usually break DKIM. If you
really need to modify and headers which are normally signed (or the
body, which is always
Hi,
I cannot find a previous discussion about this topic here on the mailing list.
We are running postfix instances for a big corporation, which delivers
to MS Exchange / Exchange online backends. We now have gotten the
requirement to mark all e-mails coming from external senders to mark
in the
