On Tue, Oct 16, 2012 at 8:49 AM, <m.roth at 5-cent.us> wrote: > Larry Martell wrote: >> This should be an easy one. I'm trying to get postfix going. I've >> never done this before. I followed the directions at >> http://wiki.centos.org/HowTos/postfix. I opened port 25: >> >> iptables -I INPUT -p tcp -m tcp --dport 25 -j ACCEPT >> > <samle send elided> > >> But I don't receive the mail. In a file in /var/spool/postfix/defer I see: >> >> <larry.martell at gmail.com>: connect to >> alt2.gmail-smtp-in.l.google.com[2607:f8b0:400d:c00::1a]:25: Network is >> unreachable >> recipient=larry.martell at gmail.com >> offset=654 >> dsn_orig_rcpt=rfc822;larry.martell at gmail.com >> status=4.4.1 >> action=delayed >> reason=connect to >> alt2.gmail-smtp-in.l.google.com[2607:f8b0:400d:c00::1a]:25: Network is >> unreachable >> >> Have I missed a step or done something wrong? >> > Unreachable... maybe you should have OUTPUT open, also? Ok, I did that, but I got the same results.