Re: Return codes, was Updated draft for "SMTP Response for Detected Spam"

On 3/31/2022 10:08 AM, John Levine wrote:
> With respect to 259 vs 559, Comcast is a pretty big mail system. If
> they think this could be useful, which they apparently do, I think it
> would be a fine idea to try the experiment


In its current form, it is far too tentative about utility.

1.  It needs to be specific and specify meaningful action
2.  It really should have a demonstrated base of interest, to give some 
indication that returning the code(s) will be useful to at least some 
client SMTPs.

d/

-- 
Dave Crocker
Brandenburg InternetWorking
bbiw.net