nanog mailing list archives
Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonym
From: Owen DeLong <owen () delong com>
Date: Thu, 13 Jan 2005 11:35:23 -0800
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 evenhave the ability to assign rDNS to their address space. This is an unfortunate
fact which should get somewhat better as a result of ARIN policies 2002-3 and 2003-15. I don't know to what extent those policies have helped yet, but, at least it is much easier for African ISPs to get direct allocations now. In essence, it is virtually impossible for a small-medium business in Africa to set up a mail server and have rDNS entries created for it because their ISP doesn't control the IN-ADDRs and the imcumbent Telco doesn't want to do anything they don't absolutely have to for the competitive ISPs. Owen -- If it wasn't crypto-signed, it probably didn't come from me.
Attachment:
_bin
Description:
Current thread:
- Re: fixing insecure email infrastructure (was: Re: [eweek article], (continued)
- Re: fixing insecure email infrastructure (was: Re: [eweek article] Markus Stumpf (Jan 25)
- 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)