On Fri, Oct 18, 2013 at 01:38:22PM -0300, francis picabia wrote: > > - There are no Postfix issues here. The OP is looking for help > > with iptables. > > No, I posted here to ask about the postfix config. There are other places > I would ask about iptables. I was suspecting something misconfigured, > which still might be the case.
Your original question: > I'm looking at the logs for an SMTP only service where iptables > should be stopping new connections on port 25, and I'm > seeing connects with no sasl auth. They fail to relay, but > I'd rather we didn't talk to them at all If iptables should be stopping the connections, then you have an iptables problem, which out of scope here. If you want Postfix to reject mail transactions, it is evidently already doing that. What do you mean by "I'd rather we didn't talk to them at all"? Postfix rejects unauthorized clients by "talking to them" and logging the rejects so you can figure out what went wrong if the rules ever block legitimate traffic. This is a new thread in which you get the opportunity to ask your question properly. What problem are you really trying to solve? Describe it clearly and completely. -- Viktor.