DNSBL helper not answering

Following up on my own previous e-mail... I tried the following:

> vps183:~ # telnet localhost 25
> 
>  (HELO, MAIL FROM, RCPT TO, DATA, but *no* QUIT)
> 
> vps183:~ # grep dccifd /var/log/mail | grep "Nov 24 09:29"
> Nov 24 09:29:10 vps183 dccifd[2043]: 1Gko0D DNSBL helper: sender 127.0.0.1 gethostbyname(1.0.0.127.sbl-xbl.spamhaus.org): Name or service not known
> Nov 24 09:29:10 vps183 dccifd[2043]: 1Gko0D DNSBL helper: sender 127.0.0.1 gethostbyname(1.0.0.127.relays.ordb.org): Name or service not known
> Nov 24 09:29:10 vps183 dccifd[10153]: 1Gko0D DNSBL helper answered 0 for sender 127.0.0.1
> 
> vps183:~ # ps -eH | grep dcc
>  5321 ?        00:00:00   dccd
>  5445 ?        00:00:00   dccifd
>  5446 ?        00:00:02     dccifd
>  5449 ?        00:00:01       dccifd
>  5450 ?        00:00:00         dccifd
>  5451 ?        00:00:00         dccifd
> 10153 ?        00:00:00         dccifd
>  2043 ?        00:00:00   dccifd (this is the DNSBL helper process)
> 
>  (entering QUIT in "telnet localhost 25 console")
>  
> vps183:~ # ps -eH | grep dcc
>  5321 ?        00:00:00   dccd
>  5445 ?        00:00:00   dccifd
>  5446 ?        00:00:02     dccifd
>  5449 ?        00:00:01       dccifd
>  5450 ?        00:00:00         dccifd
>  5451 ?        00:00:00         dccifd
>  2043 ?        00:00:00   dccifd (this is the DNSBL helper process)

So the PIDs seem fine (?) - a new dccifd process (10153) is started when 
I connect to the dccifd smtp server. This process immediately exits upon 
quit. I don't know if that's the expected behavior. I also don't know 
what PID 5450, 5451 are doing as they don't seem to be used.

- Daniel