It would be interesting to hear reports of how well it works
in the field, and what the costs and benefits are for a
large deploying site.
That last executes a perl script for each and every mail, which might
not be the most efficient way of doing this. I think I will include an
option for the sendmail srs patches I wrote to do srs on each outgoing
mail regardless of whether it is forwarded or not, perhaps that will
also help.
You could always use Apache::SMTP (a mod_perl 2.0 module that
implements a simple SMTP proxy) or perhaps qpsmtpd.
Regards,
Ken