Jose Luis wrote: > Thanks for the answer, > > My mail server is qmail + clamav + sa (spf) + simscan. > > I do some configurations Qmail or Simscan to get those headers? I'm certainly no expert on Qmail, never used it, and I likely never will unless DJB makes some changes, but that's really a personal preference..
That said, there might be an updated version of simscan to do this. Ask the simscan mailing list. As an alternative, you can ditch simscan and switch to qmail-scanner, which AFAIK will generate a "X-Qmail-Scanner-Mail-From" header. Simscan might do something similar already, but I know very little about it. You can tell SA to use any abnormal headers, like the one qmail-scanner makes, but using the envelope_sender_header option in SA.
