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Re: smtp to localhost - was Re: [Phpgroupware-users] configuring smtp au

From: Dirk H. Schulz
Subject: Re: smtp to localhost - was Re: [Phpgroupware-users] configuring smtp auth in email app
Date: Tue, 14 Mar 2006 13:56:13 +0100
User-agent: Mozilla Thunderbird 1.0.7 (Macintosh/20050923)

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 ESMTP Server <Microsoft Exchange Internet Mail

It is really neat how postfix lets you change the server string :)
Grand idea for playing the philosopher a bit. :-)

Thanks Dave and Guillaume,


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