POP3 Port 110 binds to local adapter address

Posted on 2008-11-05
Last Modified: 2012-05-05
I am having a problem with my server.  I have two network adapters one for internet access which is assigned a public IP and the other for internal network traffic.  To share the internet connection I am using Routing and Remote Access.  This all works fine.  However I found that my POP3 port 110 is binding to the internal address instead of the external address.  I am using SmarterMail for my mail server.  I have tried disabling the internal card and rebooting but it doesn't seem to change the bindings for the port.  Does anyone have any ideas on what the problem is?
Question by:jdfulton
    LVL 2

    Assisted Solution


    Im not familiar with smartermail, but most mail servers have a domain specific IP address binding, which means that you are looking for something like edit domain [domain name], IP address in smartermail somewhere.
    LVL 26

    Expert Comment

    You're using the pop3 service in IIS? Click on the properties of the pop3 service and you should be able to choose which IP to listen on.
    LVL 6

    Author Comment

    No I am using Smartermail for POP and SMTP.  Just trying to figure out why the ports are binding to the internal address instead of the external.  
    LVL 26

    Assisted Solution

    It probably either picks the first one it sees, or the first one alphabetically labeled.
    LVL 6

    Accepted Solution

    I figured out the problem.  In smartermail you had to edit each domain and select the IP address it uses.  Since it couldn't find my old IP address and the new one wasn't setup it was using the internal address that was set on one of the domains.  It is all working fine now.


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