On 2/14/2014 7:57 AM, Wietse Venema wrote:
> Noel Jones:
>> On 2/13/2014 11:29 PM, Viktor Dukhovni wrote:
>>> On Fri, Feb 14, 2014 at 01:17:14PM +0800, King Cao wrote:
>>>
>>>> *reject_unknown_recipient_domain*Reject the request when Postfix is not
>>>> final destination for the recipient domain, and the RCPT TO domain has 1) 
>>>> *no
>>>> DNS A or MX record* or 2) .......
>>>
>>> English is not symbolic logic, but the intent is clear:
>>>
>>>     1. no (MX or A record)
>>>
>>> rather than:
>>>
>>>     2. no MX or no A record.
>>>
>>> By De Morgan's laws (https://en.wikipedia.org/wiki/De_Morgan%27s_laws)
>>> the first is also:
>>>
>>>     3. no MX and no A record.
>>>
>>> interpretation "2" seems too implausible to warrant correcting the
>>> document, but if others feel it is ambiguous and someone sends a
>>> patch for proto/postconf.proto that improves the clarity of the
>>> text, it should be cheap enough to adopt it.
>>
>> s/or/nor/
> 
> Did you mean: neither A nor MX record.
> 
> Clarity wins with "no MX and no address record."
> 
>       Wietse
> 

Yes, I was thinking neither/nor, but "no MX and no address record."
is better.
We've obviously spent too much time discussing this already.


  -- Noel Jones

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