users getting email on phones but delayed in outlook..

Users are complaining that they are getting emails on their mobile devices but not on their desktops. They said their outlook has been saying updating for over 2 hours...
We have recently setup the exch 2007 and 2013 together because we are migrating so all of the email is going through the 2013 server..
Any ideas on what I need to check?
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Simon Butler (Sembee)ConsultantCommented:
If they are arriving on the phone then the problem is between Outlook and the client.
If you use OWA, do you see the messages there?

What is the current state of the migration? Do you have users on the Exchange 2013 environment?

vmichAuthor Commented:
Only afew test users have been migrated to exch 2013.
99.9% of the users are still on the 2007 server.
vmichAuthor Commented:
It is the 2007 users that are having the issue
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Simon Butler (Sembee)ConsultantCommented:
What does OWA show? That is key here.
The fact that email is going through Exchange 2013 should have nothing to do with it. Even if that is where the ActiveSync clients are connecting to Exchange, they will not get the email until it arrives in the mailbox.

vmichAuthor Commented:
Not sure on owa I will have to check to see what that is showing...
Could it have to do with the OAB?
I dont recall if I ran the ems command get-mailboxdatabase and set the default to exch 2013 for all when I did the 2013 setup.
Just wondering..
vmichAuthor Commented:
never mind I just ran get-mailbixdatabase on the 2013 and they all show for the 2013 server.
Simon Butler (Sembee)ConsultantCommented:
OAB would have nothing to do with it either.
You should have two OABs, one for Exchange 2013 and one for the legacy environment.

vmichAuthor Commented:
yes and we do....
Not sure what could be causing this and it only seems to be with a handful of the 2007 users and also it seems that the 2007 queues seem to be moving slow...
vmichAuthor Commented:
Simon I jusy noticed that the send connector on the 2007 server has both the 2007 and the 2013 for the source server. Is this correct?
Also  OWA does works fine for these users having the issue.
What does that mean?
Simon Butler (Sembee)ConsultantCommented:
Send Connector is purely for outbound email. It would have no effect on the problem.
Whether it is correct to have both servers listed is a different matter. You need to be sure that the Exchange 2013 server can route email as per the connector and the DNS, PTR and NAT is correct to do so.

If the email is on OWA correctly, then the problem is between the client machines/Outlook and the server.
Lots of reasons for that, it could be that you have configured the new server incorrectly - perhaps trying to use the same host name on both servers, something like that.

Will SzymkowskiSenior Solution ArchitectCommented:
If you set your users to use Online mode for Outlook does this issue go away? Is this happening for all users?

vmichAuthor Commented:
No it is not happening for all users just a handful, which was what did not make any sense..
Bit since my last post here on this, I rebooted the exch 207 server and ever since all seems to be working just fine now...
Not sure what was going on with it but the reboot seem to fix the issue..
vmichAuthor Commented:
I had to make registry change for exclusions for virus software for the msexchangeIS service and add setting to disable the tcpchimney and the RSS
There was  alot of rpc delay issues with the queue.

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vmichAuthor Commented:
registry changes
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