Dyndns and Exchange on SBS2003

Discussion in 'Windows Small Business Server' started by John, Jun 24, 2004.

  1. John

    John Guest

    Setup: SBS2003 Standard behind Linksys firewall.

    I am setting up a customer who's ISP is blocking port 25. My solution is to
    use Dyndns.com to reroute email to port 24 which isn't blocked. Do I just
    need to port forward 24 to the Exchange box? What about outgoing mail?

    John, Jun 24, 2004
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  2. Hi John

    I use dyndns service mailhop outbound on port 2525 and it works well. If
    they are blocking 25 both ways then you will need Mailhop outbound and
    Mailhop Relay. Most ISPs that block Port 25 only block it outbound though so
    you need to check on whether you really need the inbound relay on 24.

    Frank McCallister
    Frank McCallister, Jun 24, 2004
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  3. John

    John Guest

    Oh thanks Frank. I just assumed it was the inbound but it makes more sense
    to block the outbound for SPAM. I will redo my account.

    John, Jun 24, 2004
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