MS ISA 2004 Server Port 587 configuration

Posted on 2007-10-01
Last Modified: 2008-11-17
Configure ISA Server 2004 to allow outbound traffic on a non-standard SMTP port 587
Question by:ThesolverCA
    LVL 8

    Accepted Solution

    A generic firewall rule allowing the port through from a defined source to a defined destination will work.
    Or are you trying to redirect stadard SMTP (port 25) to a non-standard port.

    Author Comment

    Yeah, I am trying to use (port 587) instead, based on email rejects from many companies
    LVL 8

    Expert Comment

    Will those other companies accept email on a non-standard port?  Based on my experience they usually won't.

    Author Comment

    What do you think about using an SMTP Connector (in Exchange Server) to Relay Outbound Email Through ISP?

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