41 messages in net.sourceforge.lists.courier-usersRe: [courier-users] breaking smtp| From | Sent On | Attachments |
|---|---|---|
| FM | Oct 30, 2007 2:06 pm | |
| Jeff Jansen | Oct 30, 2007 9:22 pm | |
| cour...@thefreecat.org | Oct 31, 2007 4:05 am | |
| gor...@bobich.net | Oct 31, 2007 4:32 am | |
| cour...@thefreecat.org | Oct 31, 2007 5:11 am | |
| gor...@bobich.net | Oct 31, 2007 5:57 am | |
| João Vale | Oct 31, 2007 6:12 am | |
| gor...@bobich.net | Oct 31, 2007 6:24 am | |
| Arturo 'Buanzo' Busleiman | Oct 31, 2007 6:34 am | |
| gor...@bobich.net | Oct 31, 2007 7:03 am | |
| FM | Oct 31, 2007 7:24 am | |
| gor...@bobich.net | Oct 31, 2007 7:35 am | |
| Gordon Messmer | Nov 1, 2007 9:20 pm | |
| gor...@bobich.net | Nov 2, 2007 9:43 am | |
| Arturo 'Buanzo' Busleiman | Nov 2, 2007 9:50 am | |
| gor...@bobich.net | Nov 2, 2007 10:10 am | |
| Gordon Messmer | Nov 2, 2007 2:01 pm | |
| Gordan Bobic | Nov 2, 2007 2:49 pm | |
| Alessandro Vesely | Nov 3, 2007 2:44 pm | |
| Gordon Messmer | Nov 3, 2007 5:59 pm | |
| Jérôme Blion | Nov 3, 2007 6:16 pm | |
| Gordan Bobic | Nov 4, 2007 1:19 am | |
| Gordan Bobic | Nov 4, 2007 1:31 am | |
| Arturo 'Buanzo' Busleiman | Nov 4, 2007 5:15 am | |
| Arturo 'Buanzo' Busleiman | Nov 4, 2007 5:23 am | |
| Gordon Messmer | Nov 4, 2007 4:32 pm | |
| Jérôme Blion | Nov 4, 2007 4:52 pm | |
| Alessandro Vesely | Nov 4, 2007 10:40 pm | |
| Bernd Wurst | Nov 4, 2007 11:09 pm | |
| Lisa Muir | Nov 4, 2007 11:51 pm | |
| gor...@bobich.net | Nov 5, 2007 1:38 am | |
| gor...@bobich.net | Nov 5, 2007 1:47 am | |
| Lisa Muir | Nov 5, 2007 4:09 am | |
| gor...@bobich.net | Nov 5, 2007 4:41 am | |
| Lisa Muir | Nov 5, 2007 4:57 am | |
| gor...@bobich.net | Nov 5, 2007 5:36 am | |
| Harry Duncan | Nov 5, 2007 6:22 am | |
| Alessandro Vesely | Nov 5, 2007 8:16 am | |
| Alessandro Vesely | Nov 5, 2007 9:08 am | |
| Bernd Wurst | Nov 5, 2007 12:44 pm | |
| Alessandro Vesely | Nov 6, 2007 12:30 am |
| Subject: | Re: [courier-users] breaking smtp | |
|---|---|---|
| From: | Alessandro Vesely (ves...@tana.it) | |
| Date: | Nov 4, 2007 10:40:30 pm | |
| List: | net.sourceforge.lists.courier-users | |
Gordon Messmer wrote:
Gordan Bobic wrote:
And at the end of the day, SPF just isn't all that effective anyway. When you can reduce your spam influx by 2-3 orders of magnitude using more sensible and cheaper methods, what is the point of bothering with more questionable methods?
Inferring that you view SPF as an ineffective anti-spam technique, I'll agree. SPF is not an effective anti-spam technique. It doesn't try to be. It's an email authentication system.
SPF is fairly effective at what it was designed to do.
I'm not sure what you mean by "fairly". It is not effective. It was designed to be widely adopted and it is not.
By contrast, if greylisting were widely adopted, spammers would be forced to catch up and much of its effectiveness would be lost.
SPF has been sentenced 2 years limbo after the MARID/IETF, so perhaps we'll talk about it again in spring 2008. IMHO, the day it will be an official protocol, organizations may be hold responsible for helping phishers by not setting up adequate SPF policies. That may boost its diffusion and hence effectiveness.