Re: smtp to localhost - was Re: [Phpgroupware-users] configuring smtp auth in email app

[Dirk H. Schulz]

Dave Hall schrieb:

> On Tue, 2006-03-14 at 09:40 +0100, Dirk H. Schulz wrote:
>  
>
> > Next round:
> >
> > I have setup phpgw to send emails via localhost.
> >
> > On one server that works as expected, on the other I get "connection 
> > refused" und "cannot open socket". I compared the configuration of both 
> > servers and did not find any difference, neither in php.ini, mta-config 
> > nor anything else I can think of (even dns).
> > On the machine where it does not work I can make it work using the 
> > external ip address in smtp config in phpgw, so I do not have an urgent 
> > problem.
> >
> > But I would like to find it. What do php/Apache need to open a socket to 
> > the local mta?
> >    
>
> They should just be opening a tcp socket to localhost port 25
>
> Maybe try sshing to the server (or using the console).  su to the apache
> user and try the following:
>
> $ telnet localhost 25
>  
That brought me onto the right track, thank you. I had defined an IP 
address for postfix to listen on (so it did not listen on the loopback 
address).

> You should get back something similar to:
>
> 220 mail.skwashd.com ESMTP Server <Microsoft Exchange Internet Mail
> Service>
>
> It is really neat how postfix lets you change the server string :)
>  
Grand idea for playing the philosopher a bit. :-)

Thanks Dave and Guillaume,

Dirk