spf-discuss
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Re: SRS/SES mailing lists?

2004-11-09 12:16:10
On Tue, Nov 09, 2004 at 07:13:47PM +0100, David wrote:
| 
| I also think SES provides better solution to the forwarding problem than
| SRS. It could work alone and, if ses modifiers are published in spf
| records and understood by SPF implementations it will be even better.
| I also have no idea why people are still working on or promoting srs.

The reason I'm promoting SRS, flawed though it is, is
because it's less total work.

Plan A: Senders publish SPF records.  Forwarders do SRS.

Plan B: Senders publish SPF records and do SES.  Forwarders
do nothing.

While plan B is more elegant, my intuition tells me that the
total work in plan A is less.

Work under A: (Senders*SPF + Forwarders*SRS)
Work under B: (Senders*(SPF+SES) + Forwarders*0)

It is my opinion that A < B.  Others may, of course, disagree.

| Well, in fact, srs has sense when forwarders have to forward non
| ses-signed mail comming from a spf protected site, but maybe it will
| be better to just ask spf enabled domains to use ses than ask all
| forwarders to use srs.

I think SES is a great contender in the crypto space, and
seems to offer the benefits of DK but with a BATV technique.

I think that senders will do SPF + Crypto eventually; the
only question is whether that'll be SES or DK or both.

If I get $200,000 in funding, I'll fund SPF+SRS+SES+DK
development for the four major opensource MTAs.