On Fri, 26 Jun 2015, Ernie Dunbar wrote:
>
> I've actually fixed this issue (at least I hope it's fixed the way I've set
> it) by adding the load balancer's IP address to the file
> /etc/exim4/local_host_whitelist. As far as I can tell, this hasn't turned our
> server into an open relay, while by default allowing mail to come in from
> this IP address.
>
It sounds like your load balancer isn't preserving the source IP of
incoming connections, and is instead behaving like a NAT when it connects
to exim; substituting the LB IP for the originating IP in the session.
At least, that's my take on it, given the amount of detail here, and
glancing over it for just a couple minutes.
--
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Dave Lugo dlugo@??? LC Unit #260 TINLC
Have you hugged your firewall today? No spam, thanks.
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Are you the police? . . . . No ma'am, we're sysadmins.
