Re: turning off rblsmtpd for domain in smtproutes

[Mattias Wikstrom <burke@yagrebu.net>]

Erwin Hoffmann wrote:
> No that's wrong. You misunderstand "empty" and "not-set".
>
> In case of RBLSMPTD="" this variable is set; but includes an "empty string" 
> (=empty); which is fine for rblsmtpd, thus it will be triggered.
From http://cr.yp.to/ucspi-tcp/rblsmtpd.html:

  "If the $RBLSMTPD environment variable is set and is nonempty,
   rblsmtpd blocks mail. [...]

   If $RBLSMTPD is set and is empty, rblsmtpd does not block mail.

   If $RBLSMTPD is not set, rblsmtpd looks up $TCPREMOTEIP in the
   RBL, and blocks mail if $TCPREMOTEIP is listed. [...]"

Pay attention to the middle paragraph quoted above. According to the 
official documentation you should not set $RBLSMTPD if you want rblsmtpd 
to do IP lookups.
Mattias