Postfix expert needed for dialup config

Wander Boessenkool wander at tomaatnet.nl
Thu Dec 16 20:56:53 UTC 2004


On Thu, 2004-12-16 at 14:31 -0600, Tommy Trussell wrote:
> Back to this point from earlier in the discussion:
> 
> On Thu, 16 Dec 2004 00:20:43 +0100, Wander Boessenkool
> <wander at tomaatnet.nl> wrote:
> > No route isn't a dns problem, it means it has resolved DNS, but the
> > ip-stack couldn't find a route to resolved address
> 
> I am still having the problem where the messages in the queue say
> there's no route to the host. While the ppp connection is up I can
> ping the host.
> 
> The messages flush properly from the queue when the machine is
> connected via Ethernet, but that's using a different ISP.
> 
> SO The dialup ISP must be blocking outbound SMTP... 
> 
> This will be a bit more complicated. I'll see if I can make postfix
> use a different port...

Good luck in trying to persuade everyone who accepts mail to use a
different port...
You can however configure postfix to use a so-called smarthost, which
means postfix will forward all it's outgoing e-mail to the smtp-server
of the ISP. 

You could try adding [/etc/postfix/main.cf]:

relayhost = smtp.myispsucks.com

then issue a:

sudo /etc/init.d/postfix reload

provided ofcourse that the isp doesn't require smtp-authentication

> 
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