IP address reputation, BorderWare

Rick Chadderdon mailscanner at yeticomputers.com
Thu Mar 29 19:29:00 CEST 2007

Chris Yuzik wrote:
> Rick,
> I've been thinking about this issue at length, and agree that it is a 
> complex one.
> <soapbox>
> After much analysis, I consider responding to incoming SAV lookups on 
> our end to simply be part of the deal with hosting a domain, much as 
> is responding to DNS queries about the domain, subdomains, etc. As 
> host to a domain, I believe it is my server's responsibility to answer 
> queries regarding SAV, in an effort to defend a domain name's 
> reputation including that of the company behind the domain name.
> </soapbox>

And I respect your decision to accept that responsibility.  I would also 
do so quite willingly if it was a normal part of a mail server's load, 
or even an option that most MTAs came with by default.  Hm.  Is it?  
Postfix does.  What about the other big ones?  Which ones do/don't?  
Addons and milters don't count.

> If your server gets spam allegedly from my domain, please, by all 
> means, do whatever you can to ensure that the mail really did 
> originate from us before letting it in to your user's inboxes, 
> including SAV.

I'm not sure I'll ever be comfortable using SAV, even if it does turn 
out to exist in most MTAs.  But thanks for your kind permission.  :)


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