[mail-vet-discuss] what's the purpose of A-R?

[John L]

>> trivial amount of extra work to check another hop or two and look at
>> AR's added farther away.
>
> Wait a second!  More than one mailbox in the case you discuss means more
> than one border gateway with differing sets of policies and is
> inapplicable to what we're talking about here.

Huh?  Where does it say that people with more than one mailbox aren't 
allowed to use A-R ?  The point I'm making here isn't about different 
policies, it's that you can only believe an A-R header if the path it took 
to get to you is good.  We don't all get our mail via a VPN direct to 
Cisco global HQ, you know, and the more unlike that a mail system is, the 
more likely it is that A-R will be useful.

> Well, it's not clear we are offering anybody any favors with this header
> to begin with.  The game is likely lost by the time the message gets to
> the user's desktop.

Perhaps, but in that case A-R is totally useless, so why waste your time 
on it?

I have described an actual not-contrived use case for multiple A-R 
headers, based on filtering that I'm doing right now.  I wish you and Mike 
would stop saying that I'm lying.

R's,
John