Ross Walker wrote:
On Mar 12, 2012, at 5:25 PM, m.roth@5-cent.us wrote:
Here's a question: is there any way to inspect an email's headers, and reject it if the alleged FWDN in the From:" doesn't match the oldest "Received: "?
That would be problematic with dual homed mail gateways that received on internal interface and delivered on external interface that had different host names on each.
I'm just trying to think of ways around a blacklist... *esp* the way dnsorb does, where they'll blacklist an entire block that belongs to a hosting provider, who provides one external delivery address.
mark "why, yes, that has happened to me several times"