In <41B72566(_dot_)5050302(_at_)vocalabs(_dot_)com> Daniel Taylor
Stephane Bortzmeyer wrote:
william(at)elan.net <william(_at_)elan(_dot_)net> wrote:
Excuse me, but it seems to me you're describing SRS!
I thought that, for SRS, the return path is coded in the address
while, in DB-backed forwarding, it is out-of-band? (Hence its name.)
This is correct.
No, that was not correct.
SRS has an option to do DB-backed forwarding in all cases and this
must be implemented so that there is a fallback in cases where the
MTA being forwarded to rejects the MAIL FROM due to excessive
So, what you have described is a subset of SRS.
Then I guess it _is_ implemented and I missed the implementation.
If SRS does indeed do this, why the focus on keeping the original
source in the address then? Local tags are much leaner and avoid
the weaknesses of the existing tag format.
Daniel Taylor VP Operations Vocal Laboratories, Inc.