On Tue, 16 Nov 2010, Chris G wrote:
Yes, I realise that "It connects from 84.45.228.40" but I can find no reason at all *why* the postfix server process on mws.zbmc.eu thinks that the connection is from 84.45.228.40.
Because that's where it came from.
Wherever I look on my LAN the IP address of dps.zbmc.eu is reported as 192.168.1.2. From the outside world dps.zbmc.eu is non-existent. So where is the postfix on mws.zbmc.eu getting the address 84.45.228.40 for dps.zbmc.eu? Alternatively (and this seems more likely to me) the postfix on mws.zbmc.eu is seeing the connection come from zbmc.eu for some reason and that *does* resolve to 84.45.228.40. What I'm asking is *why* it's seeing the connection from zbmc.eu even though I have set everything that I can see to say it's dps.zbmc.eu.
I think you have the relationship reversed. The connection came from 84.45.228.40, not from some hostname. Postfix knows the TCP/IP address the connection comes from and translates that to a hostname for logging and restriction purposes. The way you wrote the above says (at least to me) that you think Postfix gets a hostname and turns that into a TCP/IP address.
-- Larry Stone lston...@stonejongleux.com
