smtp for internal email

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From: Jim (anonymous_at_discussions.microsoft.com)
Date: 09/20/04

  • Next message: Jeffrey Glucksman, MCP: "Re: Emailing Error" 
    Date: Mon, 20 Sep 2004 13:05:31 -0700

    Your mail server will not receive email from the internet
    unless you forward the proper ports through your firewall
    and set up an MX record for the domain.

    If you have it physicially plugged into the net you might
    get randem spam from people scanning for open smtp ports,
    but these will not be directed to any valid users.

    If you find clients getting mail (actually in the outlook
    client) they are likely bypassing your mail server and
    directly hitting a pop3/http server over the internet. Try
    blocking port 25 and 110 for outbound access. Only enable
    IP ACL's for your mail server if you need that access...

    Blocking HTTP mail required url filtering via some means.

    >-----Original Message-----
    >trying to set up exchange to handle internal email ONLY,
    >but am having problems. restricted users still getting
    >outside mail (i.e. hotmail, yahoo, etc.). anyone have any
    >ideas?
    >thanks,
    >.
    >

  • Next message: Jeffrey Glucksman, MCP: "Re: Emailing Error"

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