[Mailman-Developers] before next release: disable backscatter in default installation

Stephen J. Turnbull stephen at xemacs.org
Tue Mar 25 07:35:16 CET 2008


Jo Rhett writes:

 > On Mar 24, 2008, at 6:45 PM, Mark Sapiro wrote:
 > > I still don't get what you mean by "properly deal with DSNs". Are you
 > > saying that an MTA should never return a DSN? It should either reject
 > > the mail during the incoming SMTP transaction or forever hold its
 > > piece?
 > 
 > Yes.  And not just me, but a dozen different blacklists. 

Unfortunately this attitude does seem to be catching hold.  I was told
recently that a secondary MX would have to stop functioning as such
because his ISP insists that he have an up to the second list of all
valid mailboxes at my site; he's not allowed to relay undeliverable
mail to me *ever*.

So much for the whole concept of a store-and-forward mail system. :-(


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