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Exchange 2007 Outgoing Email stopped

As of last night our Exchange 2007 mail server stopped sending email to the outside world.  The internal email is still working so I am thinking maybe the Exchange server is not talking to the edge trasport server.
Here is a message that I am getting on the exchange server:
Exchange error
I created a new certificate on the edge and transferred the xml file to the exchange but get this message when trying to sync.
exchange error
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HBMI
Asked:
HBMI
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1 Solution
 
Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Is there a firewall server ?
Try to see if you can route messages directly from the firewall ?
Is there any EventID's on the EDGE server ?
Did you try to Restart the EDGE server and the Transport services on the HUB ?
Was there any auto-updates done on the Servers ?

- Rancy
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PriceDCommented:
Have you check to see if you on a blacklist.  You can use the http://www.mxtoolbox.com/ to confirm.

Also, have to check to see if you can setup a computer with a pop account and see if you can sent out.
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PriceDCommented:
As mentioned try setting up a client with static IP's and so you are not going through your server.  Also, use an outside DNS (not your own) such as google 8.8.8.8.  This will make sure you are not going through your server.
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HBMIAuthor Commented:
Is there a firewall server ?  Firewall is turned off
Try to see if you can route messages directly from the firewall ?  NOT SURE
Is there any EventID's on the EDGE server ?  Transport certificate expired
Did you try to Restart the EDGE server and the Transport services on the HUB ? YES
Was there any auto-updates done on the Servers? YES, KB2705219 & KB2712808
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
So if the firewall is turned off so do the EDGE servers route email directly to the Internet ?
Is the Certs expired on HUB or EDGE ?
Hope the ADAM and other services are started on the EDGE server ?

- Rancy
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HBMIAuthor Commented:
On my exchange server I see 4 Thumbprints and on my Edge transport server I see 3 thumbprints.  Should I delete these and make a new one?
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HBMIAuthor Commented:
So if the firewall is turned off so do the EDGE servers route email directly to the Internet ? NO it goes to a baracuda appliance.  I see messages queued up on the exchange server so they are not getting to the edge transport server.
Is the Certs expired on HUB or EDGE ?  HUB
Hope the ADAM and other services are started on the EDGE server ? Yes it is Running
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
When did the Cert expire ... maybe thats causing the mailflow to stop.
When are you planning to renew the certs ... please do at the earliest.

- Rancy
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HBMIAuthor Commented:
This is don't by using the command shell right?

When did the Cert expire ... maybe thats causing the mailflow to stop.
When are you planning to renew the certs ... please do at the earliest.

- Rancy
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Deepu ChowdaryCommented:
Yes, run New-exchangecertificate command.

Or else u can go to inetmgr-- Select cert -- in action pane u will have renew option.
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Exchange_GeekCommented:
On my exchange server I see 4 Thumbprints and on my Edge transport server I see 3 thumbprints.  Should I delete these and make a new one?

Event id 1024 is always cause of failed certs, Edge Sync shouldn't have more than one thumbprint - why are their four of them? Check the details of each, doesn't make sense to me for an Edge BOX to have four certs.

BTW here are the steps to recreate a cert.

On the Edge Transport server, create and export an Edge Subscription file using following steps

New-EdgeSubscription -FileName "C:\EdgeSubscriptionInfo.xml"

Copy the Edge Subscription file to a Hub Transport server or a file share that's accessible from the Active Directory site that has your Hub Transport servers.

Import the Edge Subscription file to your Active Directory site to which you want to subscribe your Edge Transport server using steps listed below

New-EdgeSubscription -FileData ([byte[]]$(Get-Content -Path "C:\EdgeSubscriptionInfo.xml" -Encoding Byte -ReadCount 0)) -CreateInternetSendConnector $true - CreateInboundSendConnector $true -Site "Default-First-Site-Name"

You'll need links to read - of course, so here they are.
http://msexchangeguru.com/2012/07/24/edge-server-tls/
http://exchangeserverpro.com/exchange-2010-edge-transport-server-configuring-edgesync

Regards,
Exchange_Geek
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Thanks Exchange_Geek for helping HBMI .... quickly in my absence :)

HBMI: Hope your already on your way to fix this ... also as said please make sure to remove all other imprints to have just the one.

Anyways as the current issue is on HUB i dont want to mess around with EDGE ... first get the HUB certs renewed and then we will check how thing work :)

- Rancy
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
I guess i my answer should have been selected as well (Multiple solution) as i pointed to Certs expire and renewal for mail-flow to work :)

- Rancy
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