nanog mailing list archives
Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym
From: Valdis.Kletnieks () vt edu
Date: Thu, 13 Jan 2005 14:51:25 -0500
On Thu, 13 Jan 2005 11:35:23 PST, Owen DeLong said:
Requesting rDNS means "I don't want to receive email from Africa".Having an rDNS entry for a host doesn't mean you know if it is/isn't in Africa, to any higher degree of certainty than when you just had the IP address.What he was pointing out her is that a majority of African ISPs do not even have the ability to assign rDNS to their address space.
Ahh.. I've had so many people of late say words to the effect of "I want rDNS so I can implement blocking <geographical>" that I didn't realize what he meant was "Implementing it means an Africa-shaped projectile wound in your foot".. ;)
Attachment:
_bin
Description:
Current thread:
- RE: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonymity" when domain exists, whois not updated yet), (continued)
- RE: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonymity" when domain exists, whois not updated yet) Joseph Johnson (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonymity" when domain exists, whois not updated yet) william(at)elan.net (Jan 12)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonymity" when domain exists, whois not updated yet) Steven Champeon (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Stephane Bortzmeyer (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Stephane Bortzmeyer (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Valdis . Kletnieks (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "an Stephane Bortzmeyer (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "an Eric Brunner-Williams in Portland Maine (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "an Barry Shein (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Owen DeLong (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Valdis . Kletnieks (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Steven Champeon (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Stephane Bortzmeyer (Jan 13)
- /24 route propagation, how long is reasonable? Michael Airhart (Jan 13)
- Re: /24 route propagation, how long is reasonable? bmanning (Jan 13)
- Re: /24 route propagation, how long is reasonable? Jon Lewis (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Rich Kulawiec (Jan 13)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Eric Brunner-Williams in Portland Maine (Jan 14)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym Eric Brunner-Williams in Portland Maine (Jan 14)
- Re: [eweek article] Window of "anonymity" when domain exists, whois not updated yet Owen DeLong (Jan 12)
- Re: [eweek article] Window of "anonymity" when domain exists, whois not updated yet Owen DeLong (Jan 12)