I have a firewall (Shorewall) running.
/etc/shorewall/rules
#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL
# PORT PORT(S) DEST
ACCEPT net fw tcp http,https,55555,ssh,6665,6666,6667,6668,6669,7000,4899,imap,pop3,smtp,25 -
ACCEPT masq fw tcp domain,bootps,http,https,631,imap,pop3,smtp,nntp,ntp,6665,6666,6667,6668,6669,7000,25 -
ACCEPT masq fw udp domain,bootps,http,https,631,imap,pop3,smtp,nntp,ntp,6665,6666,6667,6668,6669,7000,25 -
ACCEPT fw masq tcp 631,137,138,139,6665,6666,6667,6668,6669,7000,4899,imap,pop3,smtp,25 -
ACCEPT fw masq udp 631,137,138,139,6665,6666,6667,6668,6669,7000,4899,imap,pop3,smtp,25 -
ACCEPT fw net tcp 6665,6666,6667,6668,6669,7000,4899,imap,pop3,smtp,25 -
ACCEPT fw fw tcp http,https,55555,ssh,6665,6666,6667,6668,6669,7000,4899,imap,pop3,smtp,25 -
As you can see, I'm allowing port 25 inbound and outbound.
Shorewall uses Zones. fw is the box itself. net is anything on eth1 (the outside world), masq is my local netowkr on eth0
- Nigel
Jeff Potter said the following on 28/10/2002 16:04:
does local email from the box manage to make it to the outside world?
if yes: are you running a firewall, or on a NATted IP address?
if no: is your ethernet interface up? (ifconfig -a)
-j
> Hi,
> I've got most of Courier 0.40 working on my Mandrake 9 machine. I've > got webadmin working, and I've got webmail working. Emailing from the > webmail works fine no problems.
> I can email "local" accounts using the webmail interface fine. But when > I try to send an email to one of the accounts from an external source I > don't get it. I don't get an undelivered message from the sending > address, but it just doesn't arrive in my maildir.
> As a test I've tried to telnet to the box on port 25 from itself, works > fine.
> > ---------------
> [root@*** sbin]# telnet localhost 25
> Trying 127.0.0.1...
> Connected to localhost.localdomain (127.0.0.1).
> Escape character is '^]'.
> 220 ***.eclipticdreams.com ESMTP Postfix (1.1.11) (Mandrake Linux)
> ---------------
> > Telnetting to the same IP:PORT from a different box however doesn't > yield a response.
> Can anyone offer me a solution to what I've done wrong? I'm vey new to > this and sorry if this is a dumb problem on my part.
> > Thanks in advance
> > - Nigel
> >
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