Darek M wrote: > I'm unsure of what the typical procedure is on this, and didn't find > anything useful in a web search, but wouldn't it make sense to run SPF > on the header From as well? Is that something Postfix could be set to > do? What about triggering some action if the header and envelope From > are different? >
If you did this, you could not read this message either. The message header is From you, but the envelope sender is not. A more sensible way is to use a policy server, such as policyd-weight or policyd, to write/use rules to check client vs envelope sender.
