John D. Hardin wrote:
On Fri, 14 Jul 2006, Michael Scheidell wrote:

  
From: John D. Hardin [mailto:[EMAIL PROTECTED]]
    
...ewww! His leg came right off. *pop*.

Now what do I do with it?
      
You CAN'T point it at an rfc1918 address (10/8 127/8, 192.168/16,
172.16/21) or you will end up in the bogusmx blacklist.
    

Okay, that's useful information, but that's not what I was suggesting
(with my tongue firmly in my cheek):

;; QUESTION SECTION:
;maila.microsoft.com.           IN      A

;; ANSWER SECTION:
maila.microsoft.com.    3       IN      A       131.107.1.7
maila.microsoft.com.    3       IN      A       131.107.1.6

Those aren't RFC1918 addresses, or MS would never be able to receive
mail via them.

  
but if YOU point YOUR secondary MX records to mail1.microsoft.com, YOU WILL LOSE EMAIL, not just spam.

it will be bounced, with a 5xx error (unknown user, unable to relay), the sending server won't retry it.

The humor value of that was obviously way too low, I'm giving up.

--
 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 [EMAIL PROTECTED]    FALaholic #11174    pgpk -a [EMAIL PROTECTED]
 key: 0xB8732E79 - 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
-----------------------------------------------------------------------
 Windows and its users got mentioned at home today, after my wife the
 psych major brought up Seligman's theory of "learned helplessness."
					-- Dan Birchall in a.s.r
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 10 days until The 37th anniversary of Apollo 11 landing on the Moon

  


-- 
Michael Scheidell, CTO
SECNAP Network Security / www.secnap.com
[EMAIL PROTECTED]  / 1+561-999-5000, x 1131

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