Re: Postfix-Server behind a DSL-Router

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Hi Frank,

sorry - I couldn't find the button for Inline-Answers in this
googlemail mess yet!


On Thu, 9 Apr 2015 12:07:53 +0200 Peter Ulrich Kruppa wrote:
> Hi everyone,
>
> please do excuse my unspecific subject - I don't really know what my
> problem is yet.
>
> I set up a Postfix-Server on my Fedora 21 box, which is connected to
> the internet via
> some Netgear Router. My private LAN is 192.168.10.0/24 with the Fedora
> box fixed on
> 192.168.10.1 . My Netgear thing has got a fixed IP and hostname, let's say for
> mydomain.com .

192.168.10.1? Isnt .1 the adress of the router for 192.168.10.x?
Maybe you should use a different IP.
      No, that's allright. My router is on 192.168.10.254 .

> Now I can
>   - send myself mails from my Fedora box
>   - send mails from my Fedora box to the outside p. ex. my googlemail account
>
> but I can't receive mails from outside.

Is the postfix listening on port 25 (smtp)?
If yes you need port forwarding on the router to send incoming
connections on port 25
to the postfix host.

      Yes: when I use telnet on port 25 from my Fedora I get
         # telnet localhost 25
        Trying ::1...
        telnet: connect to address ::1: Connection refused
        Trying 127.0.0.1...
        Connected to localhost.
        Escape character is '^]'.
        220 pukruppa.de ESMTP


Greetings

Peter

2015-04-09 12:24 GMT+02:00 Frank Elsner <frank@xxxxxxxxxxxxxxxxxxxxx>:
> On Thu, 9 Apr 2015 12:07:53 +0200 Peter Ulrich Kruppa wrote:
>> Hi everyone,
>>
>> please do excuse my unspecific subject - I don't really know what my
>> problem is yet.
>>
>> I set up a Postfix-Server on my Fedora 21 box, which is connected to
>> the internet via
>> some Netgear Router. My private LAN is 192.168.10.0/24 with the Fedora
>> box fixed on
>> 192.168.10.1 . My Netgear thing has got a fixed IP and hostname, let's say for
>> mydomain.com .
>
> 192.168.10.1? Isnt .1 the adress of the router for 192.168.10.x?
> Maybe you should use a different IP.
>
>> Now I can
>>   - send myself mails from my Fedora box
>>   - send mails from my Fedora box to the outside p. ex. my googlemail account
>>
>> but I can't receive mails from outside.
>
> Is the postfix listening on port 25 (smtp)?
> If yes you need port forwarding on the router to send incoming connections on port 25
> to the postfix host.
>
>
> Regards, Frank
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