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Old 08-27-2009, 03:15 AM   #1 (permalink)
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Default Which TCP port uses MS Exchange to communicate with BES Messaging Agent ?

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Hi there,

we are about to set some fw rules on our network.

I have read that when a new message arrives in a userís mailbox, Microsoft Exchange notifies the BlackBerry Messaging Agent.
Don't you know wich tcp port uses MS Exchange to communicate with BES ? (we need to add this to fw rules).

Thanks a lot.
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Old 08-27-2009, 07:12 AM   #2 (permalink)
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Quote:
Originally Posted by premnik View Post
Hi there,

we are about to set some fw rules on our network.

I have read that when a new message arrives in a userís mailbox, Microsoft Exchange notifies the BlackBerry Messaging Agent.
Don't you know wich tcp port uses MS Exchange to communicate with BES ? (we need to add this to fw rules).

Thanks a lot.
Exchange doesn't talk to BES. Exchange has no idea BES is poking it all the time like a hot poker. BES scans the user mailboxes for changes and then performs the necessary actions to get them to the handhelds.
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Old 08-27-2009, 07:26 AM   #3 (permalink)
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Originally Posted by scorp508 View Post
Exchange doesn't talk to BES. Exchange has no idea BES is poking it all the time like a hot poker. BES scans the user mailboxes for changes and then performs the necessary actions to get them to the handhelds.
Sorry, but this is not true.
In Domino and Groupwise environments, BES scans the mailboxes on a schedule for changes... but this is not the case for Exchange.

Exchange uses MAPI and sends a UDP Notify packet to BES to alert it that there is a new message to be delivered.

If there is heavy network traffic, or some other reason to prevent the UDP Notify packet from reaching BES, only then will BES issue a mailbox rescan to have a look around.
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Old 08-27-2009, 07:28 AM   #4 (permalink)
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Quote:
Originally Posted by premnik View Post
Hi there,

we are about to set some fw rules on our network.

I have read that when a new message arrives in a userxxx8217;s mailbox, Microsoft Exchange notifies the BlackBerry Messaging Agent.
Don't you know wich tcp port uses MS Exchange to communicate with BES ? (we need to add this to fw rules).

Thanks a lot.
Is your BES not on the same local LAN as your Exchange server?
If not, then why?

Exchange <--> BES communication is via MAPI. You'd want to allow any and all ports defined by the MAPI protocol.
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Last edited by penguin3107 : 08-27-2009 at 07:30 AM.
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Old 08-27-2009, 06:15 PM   #5 (permalink)
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Quote:
Originally Posted by penguin3107 View Post
Exchange uses MAPI and sends a UDP Notify packet to BES to alert it that there is a new message to be delivered.
Think about the situation of this post. If the client established the session first then this is merely part of the MAPI conversation and since the client established it there should (in most cases) be no need for FW rule adjustment.
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Old 08-27-2009, 07:02 PM   #6 (permalink)
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Quote:
Originally Posted by penguin3107 View Post
Sorry, but this is not true.
In Domino and Groupwise environments, BES scans the mailboxes on a schedule for changes... but this is not the case for Exchange.

Exchange uses MAPI and sends a UDP Notify packet to BES to alert it that there is a new message to be delivered.

If there is heavy network traffic, or some other reason to prevent the UDP Notify packet from reaching BES, only then will BES issue a mailbox rescan to have a look around.

You are a basket full of knowledge. Keep up the great work.
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Old 08-30-2009, 03:13 PM   #7 (permalink)
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Quote:
Originally Posted by scorp508 View Post
Think about the situation of this post. If the client established the session first then this is merely part of the MAPI conversation and since the client established it there should (in most cases) be no need for FW rule adjustment.
You can assign static ports for MAPI communication with Exchange.

READ: Exchange Server static port mappings
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Old 08-30-2009, 03:13 PM   #8 (permalink)
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You are a basket full of knowledge. Keep up the great work.
did you give him an atta boy?

really?
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Old 08-30-2009, 03:16 PM   #9 (permalink)
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Probably knot
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Old 08-30-2009, 03:18 PM   #10 (permalink)
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Probably knot
you just ... omg.
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Old 08-31-2009, 10:22 AM   #11 (permalink)
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did you give him an atta boy?

really?
Yes I did.
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