On 10/13/15 12:10, Viktor Dukhovni wrote:
> On Tue, Oct 13, 2015 at 12:07:44PM -0400, Phil Stracchino wrote:
> 
>> On 10/13/15 12:04, Viktor Dukhovni wrote:
>>>
>>> The local(8) delivery agent is processing a message with an invalid
>>> (non-printable) recipient.
>>
>> Could it be the case that the recipient is unprintable because it was
>> originally processed and quarantined by dspam when smtputf8 was active?
> 
> Yes, but the question is why your MTA would have accepted such a
> recipient.  Recipient validation would normally reject non-existent
> users whether UTF-8 or ASCII.  Have you disabled recipient validation,
> or created a wildcard alias that permits all recipients?

No.  In fact, the opposite; I'm specifically rejecting mail to some
otherwise technically valid recipients that should not receive mail
(system users), and otherwise accepting only valid existing users:

local_recipient_maps =  unix:passwd.byname
                        $alias_maps

alias_maps =            btree:/etc/postfix/aliases
                        btree:/var/lib/mailman/data/aliases

alias_database =        btree:/etc/postfix/aliases
                        btree:/var/lib/mailman/data/aliases



-- 
  Phil Stracchino
  Babylon Communications
  ph...@caerllewys.net
  p...@co.ordinate.org
  Landline: 603.293.8485

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