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

[Dirk H. Schulz]

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?

Any hint or help is appreciated.

Dirk