OpenBSD 4.4: dnsbl just for port 25 (not msa 587)

[Alvaro Mantilla Gimenez]

Hello,

   Is there any way to apply dnsbl feature just on port 25 on the
default openbsd sendmail configuration and do not apply that on port 587
(just auth smtp)?
   I googled it looking for answers but it seems people disabled dnsbl
feature on sendmail and used it with spamassasin (which is not an option
for me).

   Any advice?


   Thanks,


              Alvaro