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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] Exchange doesn't send e-mail notification through fire wall
As a followup on this issue, Microsoft support article Q148732 only applies to the TCP ports used by the Information Store, Directory Service and System Attendent. The new mail notification is sent by UDP and the port is actually defined by the client upon their connection. The UDP port can not be set to only a specific entry or range. The details can be found in Microsoft support article Q264035. Of course, Microsoft's solution is to open up all the UDP ports from the Exchange server to the clients. >From Q264035 Setting Value ------------------------------------------ Protocol ID UDP Direction Exchange Server --> Client Local Port >1024 Remote Port >1024 Ken McKinlay, GCIA Network Security, Dy 4 [email protected] -----Original Message----- From: Chontzopoulos, Dimitris [mailto:[email protected]] Sent: Wednesday, May 15, 2002 05:13 To: [email protected] Subject: Re: [FW-1] Exchange doesn't send e-mail notification through fire wall You have to configure Exchange to use predefined ports. You have to set this up manualy through the registry. Check Microsoft support article Q148732 for the details. Cheers, Dimitris -----Original Message----- From: Nico De Ranter [mailto:[email protected]] Sent: Wednesday, May 15, 2002 10:58 AM To: [email protected] Subject: [FW-1] Exchange doesn't send e-mail notification through firewall Howdy, I moved a number of PC's to a protected network (FW-1 NG.FP1). The PC's on the protected network are allowed to access anything outside their network but nothing is allowed in. Unfortunately the users need to have access to the local virus factory, euh I mean Exchange server. This is still possible since they are allowed to access anything outside their network, however it turns out the Exchange server sends a UDP packet whenever the user gets a new mail. So now the users don't get an automatic warning anymore but instead they need to press 'check mail' every once in a while. Unfortunately the Exchange server does not seem to use a fixed port for sending those packets so I can't just allow that specific traffic. Is there any way to get around this so the users get their notifications again? Nico ================================================= To set vacation, Out Of Office, or away messages, send an email to [email protected] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [email protected] =================================================
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