Queue on Edge Role 1

[snootalope]

We haven't made the upgrade to exchange 2007 yet, still doing some researching..

Hopefully someone can set me straight on this. Say I upgrade what is now our exchange 2003 box to 2007 and put an Edge server in our dmz. Mail is flowing just fine, and then our 2007 box goes down. What happens on the Edge server? Will incoming messages queue up on there? Or will it start kicking back ndr's? Can one make the messages queue up?

Just thinking....if the back end were to go down, could the messages queue up giving me time to bring the back end back online.

Thanks for any info!

 

[58sniper]

Say I upgrade what is now our exchange 2003 box to 2007

You can't upgrade. You have to install 2007 on a clean box. Exchange 2003 is 32bit, and Exchange 2007 is 64bit.

What happens on the Edge server? Will incoming messages queue up on there?

Yes, assuming you have adequate space.



Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/

 

[snootalope]

don't ya love easy answers.. thanks!

 

[ShackDaddy]

One thing the Edge does is it syncs a list of valid email addresses from the AD, so it knows which messages to reject or keep in queue based on email address, so if your mailbox/hub server went down, valid mail would just accumulate in queue waiting for the hub transport server to be available again. Mail that is in that queue has already been accepted and won't NDR unless the hub transport/mailbox provides some other reason to bounce it, like mailbox over size limit or something...

Hmmm... Which leads me to ask the wise ones here, would something like "mailbox over size limit" be a value that would sync up to the Edge to control NDR, or would that operation really be conducted by the mailbox role?

Dave Shackelford
ThirdTier.net

 

[58sniper]

Hmmm... I *think* that that info is not part of edge synchronization. Actually, I don't think it could be, as edge synchronization is not real time.

I would emphatically recommend a couple of things:
1. install ForeFront on the edge box to drop any infected mail
2. configure recipient filtering, connection filtering
3. configure safelist aggregation

I'm working on an article now for petri.co.il on scheduling safelist aggregation.

All of these will help define what email is queued up.

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/