Stefan Bühlmann wrote:
Hi Stefano,
Thanks for your fast help. But I still have problems... Strange...
First: "telnet 213.165.64.100 25" or "telnet mx0.gmx.de. 25" both leave me
with a cleared blank scrren. I don't get any text (no "220 mx0.gmx.net GMX
Mailservices ESMTP {mxNNN}"). Since you quoted that, you obviously can
telnet to the server.
Yes, I can connect and "talk" with them.
But I can send Mail with my Outlook to server mail.gmx.net and I can "telnet
mail.gmx.net 25". I do not understand the difference.
They are probably different servers. The mx servers for gmx.net can be
found with the command:
> dig mx gmx.ch.
or
> host -t mx gmx.ch.
and they are:
10 mx0.gmx.net.
10 mx0.gmx.de.
Both hostnames have the same priority and point to the same multihomed
IP: 213.165.64.100
While mail.gmx.net is a different server:
mail.gmx.net. 7200 IN A 213.165.64.20
mail.gmx.net. 7200 IN A 213.165.64.21
Maybe your provider is filtering outgoing smtp connection (port 25) but
the one directed to their own mailserver (mail.gmx.net).
If you can't have the provider to remove this filter you could configure
the james RemoteDelivery service to use "mail.gmx.net." as a gateway.
Of course this is not the same thing of connecting to the final host,
but maybe this fix your problem.
Second: My firewall is open for ports 25 and 110. But there is a NAT between
the WAN-side and my internal PC. I have propperly forwarded the ports to
that machine. Doesn't the fact that I can send mail with Outlook, prove,
that smtp goes out propperly? (I did reboot the router/firewall).
Thanks for your help,
Stefan Bühlmann
You can either solve the network/filter/firewall problem (but this is
not the appropriate list, and you can see if you fixed this by using the
telnet command) or you can try the gateway option.
Stefano
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