Postfix mynetworks

Hi,

I set up Postfix with "YaST2 mail". I can do a "telnet 127.0.0.1 25", but I
can't "telnet 192.168.X.Y 25", i.e. my Intranet address. I even tried to set
the "mynetworks" Parameter in /etc/postfix/main.cf, even though I understood
that this is default, but it didn't help. "YaST firewall" claims that this
port is open and "SuSEfirewall2 stop" does not help.

Any idea, why I can't reach Postfix? (BTW: The machine has 2 NICs and I
preferably want Postfix to listen on the internal one only.)

Christian

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On Sun, 18 Dec 2005 19:38:46 +0000, Christian Barmala wrote:

> Hi,
>
> I set up Postfix with "YaST2 mail". I can do a "telnet 127.0.0.1 25", but
> I can't "telnet 192.168.X.Y 25", i.e. my Intranet address. I even tried to
> set the "mynetworks" Parameter in /etc/postfix/main.cf, even though I
> understood that this is default, but it didn't help. "YaST firewall"
> claims that this port is open and "SuSEfirewall2 stop" does not help.
>
> Any idea, why I can't reach Postfix? (BTW: The machine has 2 NICs and I
> preferably want Postfix to listen on the internal one only.)

Yep, by default SuSE doesn't configure the mail server to listen for
remote connections i.e. those originating from another host on your
network. Try editing /etc/sysconfig/mail and set SMTPD_LISTEN_REMOTE to
yes, then run SuSEconfig and restart postfix...

--
Mark Robinson
Novell Volunteer SysOp

One by one the penguins steal my sanity...

Hi Mark,

Mark Robinson wrote:
> On Sun, 18 Dec 2005 19:38:46 +0000, Christian Barmala wrote:
> by default SuSE doesn't configure the mail server to listen for
> remote connections

http://www.postfix.org/basic.html writes: The default is to listen on
all active interfaces. But sometimes SuSE has it's own settings.

> Try editing /etc/sysconfig/mail and set SMTPD_LISTEN_REMOTE to
> yes, then run SuSEconfig

This results in inet_interfaces = all, which allows me to relay from the
Internet interface, ... but from the other interface too. Now I have to
restrict mynetworks. If I do this directly in /etc/postfix/main.cf,
SuSEconfig will compalain about the manual modification. Is there a way
to handle this?

Christian