In <20040219142507(_dot_)GC26033(_at_)csi(_dot_)hu>
mw-list-spf-discuss(_at_)csi(_dot_)hu writes:
On Fri, Feb 13, 2004 at 09:57:11AM -0600, wayne wrote:
SPF and SRS are completely independent solutions to different
problems.
If you only have SPF, how do you handle bounces for forwarded
messages?
If you don't forward messages, you don't have a problem. There are
actually a lot of places that don't.
If you forward email, then you need something like SRS, or get the
recipients to whitelist you.
If you run mailing lists, then you need something like VERP.
If you need to authenticate and individual, you need something like
GPG or S/MIME.
If you spam, then you need some way of hiding who you are.
These are all completely independent and solve different problems.
People can choose which ones are right for their situation.
-wayne