Are Settings changed by Backoffice ?
We had a big issue last year that HES IP adresses were blacklisted on Backscatterer.
This was a fulltime job for month to discuss with support and get a reliable solution.
On discusions with the support guys we were adviced to set the "Edit Inbound Path" "Directory Harvest Attack (DHA) Protection Settings" to REJECT INVALID ADRESSES.
I change this on all the customers HES. But i came back so often with an DEJA VU. The config is resetted to "process all massages the same"
Which of corse collects more SPAM to wrong email adresses as we want.
Why is this changed automatically - did you see this behavior on your HES?
and customers occasionally asked me about the mass of spam they get...
I think someone is kidding me !