Matthew Seaman wrote:
That closed port 25 on the extra NIC, but netstat still shows "tcp4
*.submission LISTEN". I definitely need to close port 587 in the 2nd
NIC, but I was wondering about "best practices" for this. Shouldn't the
submission thing ONLY be on the localhost IP? I'm thinking I can use:
You also need:
otherwise, you're definitely heading in the right direction.
Thanks, Matthew! That was the piece I was missing. I tried my Daemon_Options
above, but found out its presence does not disable the default config to listen
on all interfaces. I got it working by directly editing the .cf, but your
trick does it from the macro config.
The final result ended up as:
FEATURE(no_default_msa)dnl # turn off MSA on all ports; only ue what's in
DAEMON_OPTIONS(`Port=2525,Addr=172.23.23.10,Name=MTA')dnl # smtp on alt port
Once I knew the right keywords to google, I found this article that might be of use to
others: "Five Tips for a Better sendmail Configuration"
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