On 27 Jun 2005 at 19:16, Mark Smith wrote about
"RE: [exim] Supressing bounce messag":
| (I wrote:)
|...
| > Can you prohibit spoofed senders (at least spoofed external
| > senders) instead?
|
| That would certainly be easier, but it's bound to upset someone.
I don't know your situation, but if you need to be concerned about
downstream effects of such abuse on your system ISTM you should be
able to justify a policy of preventing the abuse in the first place.
You can, of course, maintain a whitelist for local users with a
legitimate reason to use an external address as their envelope
sender. Would that not make them happy (enough)?
- Fred