This may be a weird one, and may be completely OT. If the latter:
Feel free to tell me to bugger off :)
System is FreeBSD 8.2, running ipfilter and
Occasionally I see something like this from ipfilter in
bge1 @0:24 b <my_outside_ip>,25 -> 18.104.22.168,36545 PR tcp len
20 40 -AR OUT
Looking in /var/log/maillog...
Dec 11 17:47:08 myhost postfix/smtpd: connect from
Dec 11 17:47:10 myhost postfix/smtpd: NOQUEUE: reject:
RCPT from unknown[22.214.171.124]: 450 4.7.1 Client host
rejected: cannot find your reverse hostname, [126.96.36.199];
from=< ... at carloerbareactifs dot com> to=< ... at mydom dot ain>
Dec 11 17:47:11 myhost postfix/smtpd: lost connection
after DATA from unknown[188.8.131.52]
Dec 11 17:47:11 myhost postfix/smtpd: disconnect from
This particular one occurred seven times in a row, in quick
I've searched on this *fairly* seriously and come up with nothing.
Anybody got any idea what this is?