It Support @ 011 Computers Inc. wrote:
> It is not spamcop but, in his case, list.dsbl.org
> <http://list.dsbl.org/> is the one that needs to be excluded.
>  
> I was asking same thing couple weeks ago, but no real life solution yet.
> Look for "How to skip RBL check after successful SMTP AUTH"
>  
> Solution is that roaming user first has to be authenticated via SMTP.
> After successful authentication, his IP should be excluded from RBL for next 
> couple minutes.
> So some patch needs to be implemented, like this one here
> http://xs3.b92.net/tomislavr/qmail.html
> 
> I did not have time to test this, but I do believe that this would be
> solution here.
>  
> Hope this helps.
>  
> Dejan

Nice find, Dejan. This looks like a nice feature.

However, it doesn't appear to be a trivial enhancement (not that it can't be
done). From what I can understand looking at Tomislavr's page, installing
this capability would involve:
.) patch to ucspi-tcp-0.88 which adds rblspp. This requires errno and Alan
Curry's patches be done beforehand.
.) patch to qmail for plugins capability. This could be tricky, given the
number of patches already applied to qmail-toaster. Also, I'm not sure how
the current SMTP-AUTH patch fits in to this scenario.
.) include ifauthskip.c, install as plugin
.) include authlogger.c, install as plugin (as long as we're at it!)

This wouldn't necessarily eliminate the current rblsmtpd, as the author notes:
> I like to have separate MX and user SMTP service, where MXs use rblsmtpd,
> and SMTPs suggested solution - both with aggressive RBL checks.

BL, this feels to me like a 'minor' release (i.e. toaster 1.4) enhancement.

Also, are there any other patches available like this, or another way to
accomplish it? If so, they should be considered too.

So would anyone like to take this on? I imagine that EE's plate is full
enough at the present time, but I'll let him speak for himself on this.

-- 
-Eric 'shubes'

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