[Asrg] FeedBack loops

[Franck Martin]

Yes it is a simple process, I was just thinking of having that process as a ready in-built engine, or third-party engine in MTAs. For the moment as said it is mainly custome code. If such capabilities would be available in sendmail or postfix, that would allow fbl to be implemented by large organisations (like universities, etc...) easily. 

Well the after the fact fbl, I was not particulary thinking of ARF, but I think the return receipts are becoming more and more useless. 

----- Original Message ----- 
From: "J.D. Falk" <jdfalk at returnpath.net> 
To: "Anti-Spam Research Group - IRTF" <asrg at irtf.org> 
Sent: Wednesday, 12 November, 2008 10:20:55 AM (GMT+1200) Auto-Detected 
Subject: Re: [Asrg] FeedBack loops 

On 11/11/2008 15:04, "Franck Martin" <franck at avonsys.com> wrote: 

> Well a bit of background. 
> 
> Is the ARF standard well accepted, I see AOL and a couple use them. I see also 
> that hiding the user that reports the spam may not allow for the recipient of 
> the report to act correctly. 

Very well accepted, yes. Nearly every complaint feedback loop uses ARF. 

> Are there any tools/library available around ARF, to 1) create these reports 
> 2) parse/process them 

http://wordtothewise.com/resources/arf.html has some. 

> Any chance to have these tools build in in major MTAs ? Does it make sense? 

I'm not sure what that would achieve. The actual process is: 

1. $A sends a message to $B 
2. $B complains to $C (their ISP) about the message (example the "spam" 
button in the Yahoo! Mail web UI) 
3. $C encapsulates the message as ARF, and sends it to $A (if $A has signed 
up to receive that feedback) 

Lots of people want to make it more complicated, but it really is that 
simple today. 

> Could they be an after the fact fbl? let say I want to know if my email got 
> delivered, query an mta, supplying some data like domain/sender IP, and the 
> mta sends me any report over last few hours.. 

No, ARF isn't (as far as I know) used for delivery reports. It was created 
for -- and is primarily used for -- user complaints, as described above. 

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