nanog mailing list archives
Re: Lazy network operators
From: "Andrew - Supernews" <andrew () supernews net>
Date: Wed, 14 Apr 2004 09:00:44 +0100
"Iljitsch" == Iljitsch van Beijnum <iljitsch () muada com> writes:
Iljitsch> I understand your frustration, but the approach of blocking Iljitsch> port 25 isn't the right one. As a generalization this is inevitably false - there are networks where blocking port 25 is absolutely the right approach, and networks where it is not. Iljitsch> It may be convenient for you, but there are plenty of Iljitsch> people who have good reasons for using other SMTP servers Iljitsch> than their access provider's ones. For these people there is port 587. Using port 25 for smarthosting needs to die (arguably it is already dead, it just hasn't stopped moving yet). Port 25 is for sending mail to the recipient's MX host. Port 587 is for sending mail to the sender's smarthost. The policy requirements and abuse characteristics of the two types of services are sufficiently different that trying to treat them as the same, even though they happen to be using the same underlying protocol, is just going to cause pain. -- Andrew, Supernews http://www.supernews.com
Current thread:
- Re: Lazy network operators, (continued)
- Re: Lazy network operators Paul Vixie (Apr 13)
- Re: Lazy network operators Eric Brunner-Williams (Apr 14)
- Re: Lazy network operators John Curran (Apr 13)
- Re: Lazy network operators Rob Nelson (Apr 17)
- Re: Lazy network operators Michael . Dillon (Apr 14)
- Re: Lazy network operators Adrian Chadd (Apr 14)
- Re: Lazy network operators Petri Helenius (Apr 14)
- Re: Lazy network operators Iljitsch van Beijnum (Apr 14)
- Re: Lazy network operators Todd Vierling (Apr 14)
- Re: Lazy network operators Iljitsch van Beijnum (Apr 14)
- Re: Lazy network operators Andrew - Supernews (Apr 14)
- Re: Lazy network operators Joe Abley (Apr 14)
- Re: Lazy network operators JC Dill (Apr 14)
- Re: Lazy network operators Iljitsch van Beijnum (Apr 14)
- Re: Lazy network operators Petri Helenius (Apr 14)
- Re: Lazy network operators Stephen J. Wilcox (Apr 14)
- Re: Lazy network operators JC Dill (Apr 14)
- Re: Lazy network operators Iljitsch van Beijnum (Apr 14)
- Re: Lazy network operators E.B. Dreger (Apr 15)
- Re: Lazy network operators joshua sahala (Apr 13)
- Re: Lazy network operators John Curran (Apr 13)