Relayhost changes when system reboots

[burritonator]

Hi,

We are running Postfix on two different servers (OSX Server), and we've been having a problem we haven't been able to figure out. We have the 'relayhost' parameter in our main.cf files set to blank:

relayhost =

Whenever the server is rebooted, however, within five minutes after it starts back up, we find that the relayhost parameter has been changed to the IP address of one of the other servers on our network. (The way our servers are configured, this causes mail delivery to stop until we set the relayhost back to blank and restart Postfix).

Note that this only happens when the servers reboot; just stopping and starting Postfix does not cause this behavior.

Can anyone offer any insight as to what could be automatically changing the value of the relayhost parameter? There shouldn't be anything on the servers that would change the main.cf file automatically (to my knowledge - we certainly didn't intentially configure anything that way), but obviously it is happening.

Thanks

 

[millap]

Hi, is there anything set in the main.cf.default that would point to the IP address you're talking about?

cd to the directory where your postfix .cf files are located and do a 'grep -l ""<ip.address>" *". That might tell you where the IP address is being taken from.