On 11/3/2013 8:11 PM, John Levine wrote:
I would recommend you go a
step further and use DKIM, ADSP, and DMARC.
Using DKIM is a good idea. Do *not* use ADSP. It is a failed
experiment which will provide no benefit and considerable pain.
+1
If you believe that your domain is heavily forged (which if you are
not Paypal, Facebook, or a large bank or ISP, it almost certainly is
not), you can set up a DMARC record to collect some statistics about
what mail other people are getting that appears to be from you. Do
not try to use DMARC to tell people to quarantine or reject your mail
until you are really sure you understand the statistics you're
getting.
+1
The 'reporting' function in DMARC appears to have wide applicability and
substantial benefit. The handling (rejection, etc.) function has very
narrow benefit.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
