On 5/2/2011 6:30 AM, Voytek Eymont wrote:
# host 194.89.34.45
Host 45.34.89.194.in-addr.arpa. not found: 3(NXDOMAIN)
~$ host 194.89.34.45
45.34.89.194.in-addr.arpa domain name pointer mkentta.iki.fi.
~$ prdns.pl 194.89.34.45/32
194.89.34.45: mkentta.iki.fi
~$ rdns-tool.pl 194.89.34.45/32
using mask 32
194.89.34.45: mkentta.iki.fi
Looks like there's a DNS issue on your end. Try flushing your cache.
For obvious reasons Postfix returns a 450 in this case, so the list
server will attempt delivery for a few days.
If you don't run your own resolver on your Postfix MX I suggest you do
so. I use PowerDNS recursor on my MX MTAs. Works great. Setup takes
less than 5 minutes. Caching is in memory only, not disk, so a restart
clears everything.
--
Stan
