On Wed, 6 Jul 2005, Daniel Taylor wrote:
The "forwarding problem" is _only_ an issue for entities that support
SPF at either end. It is only a problem for the forwarder if they care
about it.
My systems don't publish or check SPF, but SPF causes problems for me
because it breaks my users' email, and I have to deal with the complaints.
2. Have your forwarder reinject.
This doesn't work. (a) It requires changes to the forwarding site, which
is what you are trying to avoid. (b) Where do bounces from forwarding
failures go?
3. Whitelist your forwarders.
How do you tell which incoming email is forwarded and which is not? What
happens when the forwarding IP addresses change?
Tony.
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