On 2012-06-22 James B. Byrne wrote: > host2 (PF) --> host3 (PF) > > host3 (PF) > (has no local domains) > (has no relay_domains) > (has no virtual aliases for example.com) > (has transport entry) "example.com relay:[host4.local.tld]" > > host3 (PF) --> host4 (SM) > > host4 (SM) is the usual final delivery host for example.com but is not > listed as an MX for example.com. Host4 does not accept connections > from outside its local network segment (IP:a.b.c.0/192). Host2 and > host3 are both on the same segment as host4. > > On host3, both etc/postfix/virtual_aliases_regexp and > /etc/postfix/virtual_aliases are empty files as is > /etc/postfix/virtual_domains. None of the aliases files contain any > reference to example.com. > > Given what I have read, with this configuration I expect that host3 > should reject mail for example.com relayed from host2. But it does > not, it accepts it and forwards it on to host4. The forwarding from > host3 to host4 I expect given that message was accepted by host3. > What I do not understand is why it was accepted by host3 to begin > with.
Check the output of the following commands on host3: postconf -d mynetworks postconf -d | grep smtpd_.*_restrictions Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky
