On Mon, Oct 18, 2021 at 09:50:33PM -0600, Bob Proulx wrote: > I am helping a friend with his system. As such things are not as I > would set them up. But just the same I can't figure out this > problem. So I come here seeking a second set of eyes on it. What is > the problem that I am not seeing here? > > mynetworks = "172.105.151.107/32, 96.88.95.55/32, 127.0.0.0/8"
Is there a particularly good reason for those double-quotes? Also, I'd be tempted to not relay on port 25, and accept outbound submission only on port 587 (and perhaps TLS wrapper mode on 465). -- Viktor.