Hi,

on NetBSD-1.5, sendmail causes strange reverse lookups for
IPv6 addresses:

The interface is configured as follows.

# ifconfig we1
we1: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        media: Ethernet 10base5
        inet 192.168.2.4 netmask 0xffffff00 broadcast 192.168.2.255
        inet6 fe80::200:c0ff:fe20:6b63%we1 prefixlen 64 scopeid 0x1
        inet6 fec0::200:c0ff:fe20:6b63 prefixlen 64

If I am using the standard sendmail configuration, each
time sendmail is invoked, it queries the nameserver for
the following addresses:

22:22:12.065735 192.168.2.4.65517 > 192.168.2.1.53:  6993+ PTR?
   3.6.b.6.0.2.e.f.f.f.0.c.0.0.2.0.0.0.0.0.0.0.0.0.1.0.0.0.0.8.e.f.ip6.int. (89)
22:22:17.071167 192.168.2.4.65516 > 192.168.2.1.53:  6993+ PTR?
   3.6.b.6.0.2.e.f.f.f.0.c.0.0.2.0.0.0.0.0.0.0.0.0.1.0.0.0.0.8.e.f.ip6.int. (89)
22:22:17.562950 192.168.2.4.65514 > 192.168.2.1.53:  6994+ PTR?
   3.6.b.6.0.2.e.f.f.f.0.c.0.0.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.c.e.f.ip6.int. (89)
22:22:17.621509 192.168.2.4.65513 > 192.168.2.1.53:  6995+ PTR?
   3.6.b.6.0.2.e.f.f.f.0.c.0.0.2.0.0.0.0.0.0.0.0.0.8.0.0.0.0.8.e.f.ip6.int. (89)
22:22:17.624889 192.168.2.1.65534 > 195.27.27.18.53:  13849+ PTR?
   3.6.b.6.0.2.e.f.f.f.0.c.0.0.2.0.0.0.0.0.0.0.0.0.8.0.0.0.0.8.e.f.ip6.int. (89)
                                                   ^
                                             note this column

The query issued at 22:22:17.562950 seems to be ok for me.
But what about the others?

Regards
    Ingolf
-- 

Ingolf Steinbach        Balin@IRCnet         ICQ#60829470
PGP: 0x7B3B5661  213C 828E 0C92 16B5  05D0 4D5B A324 EC04