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  • need to route email through firewall scanner...

    Hello we have a SBS 2008 I was running through a smoothwall firewall with port forwarding with all required and standard exchange ports. I recall during the setup an option for what I think is called setting up a smart host, or similar.

    We are going to be testing another product that will scan at the firewall level all incoming emails and I'm curious how to config the SBS and/or Exchange to look at that firewall. Don't worry about the firewall config needs as I know that is my problem...I just don't know what wizard or configs to change on the exchange side.

    What do I need todo and can you confirm what ports are effected since I don't think exchange runs on the standard SMTP25. EDIT: OK I do see on my current firewall that SMTP25 is open and forwarded and no other alternate ports other then IMAP, HTTP, ect. Maybe I just answered my own question since the standard port is used...but anyone who wants to give any advise on config'ing these needs would be appricated since I'm new to routing email through the firewall for scanning and not just through it via port forward.
    Last edited by carboncow; 22nd August 2011, 18:16.

  • #2
    Re: need to route email through firewall scanner...

    For inbound email you do whatever the product says.
    For outbound email, run the wizard in the SBS management console to configure it to use a smart host and enter the information it asks for.

    Although personally I find many of the scanners built in to firewalls a pain, block more than they should. A dedicated appliance is ok, but anything that has been "bolted on" usually causes more problems than it resolves.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

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    • #3
      Re: need to route email through firewall scanner...

      Thanks, great info.

      I had to look a bit harder in the Console. The Getting Started Tasks (bar) was hidden at the bottom...now I see what i need.

      Years ago with ran an Astaro server that worked great, but expensive. I've been using a smoothwall firewall for the last couple of years and it keeps having issues. I've found a product with free solutions called "Untangle" and has promise. It uses ClamAV and SpamAssasin and the few forum posts I've read gave it incredible reviews, so we'll see...

      EDIT: After reading it looks like smart host is for 3rd party IP solutions for filtering. My firewall will most likely just hand off port 25 between the intertubes and the exchange server and not require smart host. Still learning...
      Last edited by carboncow; 22nd August 2011, 19:27.

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      • #4
        Re: need to route email through firewall scanner...

        The smart host is for when you are routing email via anything other than DNS lookup. If it is going to scan the traffic then you need to be careful of that to ensure it doesn't damage the message.

        I find reviews of anti-spam solutions pretty much useless because everyone gets different spam patters. I can point to sites where a solution has worked wonderfully, and another where it was ineffective. Reviews are just what that individual has found, nothing else.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

        Comment

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