On 18-Jan-2010, at 10:28, Stan Hoeppner wrote:

> LuKreme put forth on 1/18/2010 12:46 AM:
>> On Jan 17, 2010, at 17:27, Stan Hoeppner <s...@hardwarefreak.com> wrote:
>>> Then I'd surmise your experience is very limited.
>> 
>> I have only been running a mailserver for 17 years or so.
> 
> Do you use either of these restrictions?

What's that have to do with anything?

PTR records are not required for mailservers. Rejecting mail from mailservers 
without a PTR record _WILL_ cause you to lose some amount of valid email.  how 
much depends entirely on what your mail looks like.

What *I* accept is a very small subset of what is legal for mailservers. For 
example, I don't accept mailservers on DHCP pools, even though this is 
perfectly within the rules for a server (and of course, these servers have PTR 
records). I also don't accept mail from russian or korean mailservers, no 
matter how they are configured. As far as I know, there are no RFCs forbidding 
these countries from having mailservers.


-- 
For a very few, the sky's the limit.
And, sometimes, not even that. --Small Gods

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