Hi Stephan,
how do you prevent loops, e.g. both sides have an autoresponder
activated?
We use the parameter "days" available for setting the frequency of
vacation messages.
For example, if "days" is set to 1, only one auto-response will be
generated for the same e-mail per day.
So, it prevents loops correctly.
Does the custom env-from is dropped by the MTA, if it
arrives from the outside? IMHO, one should not assume that another
side does honor Preference: bulk/auto.
I did not understand what you meant. Can you give an example?
Regards,
Gerson