On 10/20/2011 7:02 AM, J. Bakshi wrote:

>>> an alternative (that will also work for mail submitted via the sendmail
>>> comand) is to use transport_maps:
>>>
>>> nore...@example.com error:...
>>>
>>>
>>> Note that if you don't want to receive errors for such mail, then you
>>> should use a "null sender" (MAIL FROM:<>).
>>>
>>> also, be sure to include informations for users to contact you if they
>>> really need to (complain, unsubscribe, ... etc).
>>
>> Hello Mouss,
>>
>> I appreciate your advise. Many many thanks.
>>
>> In caes of
>>
>> nore...@example.com  error:...
>>
>> how can I provide a notice to the users about whom to contact

In your transport map, use an entry something like
nore...@example.com  error:Restricted account. Contact ad...@example.com

or maybe

nore...@example.com error:See http://site/contact-form

Note that rejecting the noreply address will cause delivery problems
if the recipient MTA uses sender address verification.

>> and how can I also
>> configure "null sender"  to avoid error mesg ?
>>

In whatever generates the original email message, set the envelope
sender to either "" or <>.  This is not the same as the From:
header, which can still be nore...@example.com or whatever.

Note using the null sender may have delivery problems too.  Some
systems (incorrectly) reject mail from the null sender.


  -- Noel Jones

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