Michele Neylon :: Blacknight
michele at blacknight.ie
Mon Nov 8 14:33:27 UTC 2010
On 8 Nov 2010, at 14:11, Lutz Donnerhacke wrote:
> In iks.lists.icann.euro-discuss, you wrote:
>> On Mon, 8 Nov 2010 12:25:37 +0000 (UTC), Lutz Donnerhacke
>>> Greylisting is a crude hack to move local problems to the common internet
>>> out there. It's one of the most prominent anti-social developments.
>> This is slightly OT, but out of personal interest, can you elaborate on
>> this ?
> All MX where tried even the low priority ones:
> icann.org. MX 10 pechora4.icann.org.
> icann.org. MX 10 pechora5.icann.org.
> icann.org. MX 10 pechora6.icann.org.
> icann.org. MX 10 pechora7.icann.org.
> icann.org. MX 10 pechora8.icann.org.
> icann.org. MX 10 pechora1.icann.org.
> icann.org. MX 10 pechora2.icann.org.
> icann.org. MX 10 pechora3.icann.org.
> So I have eight connections before the first "real" greylisting comes into
> effect. My mail system does not know the time window to retry in advance and
> usually failes to hit it withing the first three or four rounds.
That's not greylisting
That's an odd setup
But it's not greylisting that's causing your issues - the multiple MX records with the same priority are the problem
> Does that stop spammers? No, spammers simply send email twice. So if you not
> running greylisting, you get even more spam.
> Overall greylisting is used to reduce the system load an the greylisters
> side in exchange for lot of additionals ressources at all communication
> partners and the whole internet.
Again - that's factually incorrect
Mr Michele Neylon
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