exchange 2013 unable to connect outlook 2007/2010/2013 versions..

I installed exchange 2013 with coexistance of exchange 2007 and move all mailboxes to new exchange 2013 . idk why its not connecting with any outlook version. webaccess is working UC certificate is installed.Please help me. here is my outlook anywhere log. 
mention that exchange 2007 cas is no more use i setup a legacy domain name and configure it with that and update the NLB and dns names with 2013. Owa is working but outlook isnt working. i check the 

[PS] C:\Windows\system32>Get-ClientAccessServer mag-ex-01 | fl name,auto*


Name                           : MAG-EX-01
AutoDiscoverServiceCN          : MAG-EX-01
AutoDiscoverServiceClassName   : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://autodiscover.magcpa.com/autodiscover/autodiscover.xml
AutoDiscoverServiceGuid        : 77378f46-2c66-4aa9-a6a6-3e7a48b19596


[PS] C:\Windows\system32>Get-OutlookAnywhere | fl 


RunspaceId : ddde1733-101b-4739-93f5-80b20002ac8e 
ServerName : MAGEX01 
SSLOffloading : False 
ExternalHostname : legacy.magcpa.com 
InternalHostname : mail.magcpa.com 
ExternalClientAuthenticationMethod : Basic 
InternalClientAuthenticationMethod : Ntlm 
IISAuthenticationMethods : {Basic} 
XropUrl : 
ExternalClientsRequireSsl : True 
InternalClientsRequireSsl : True 
MetabasePath : IIS://MAGEX01.mag.local/W3SVC/1/ROOT/Rpc 
Path : C:\Windows\System32\RpcProxy 
ExtendedProtectionTokenChecking : None 
ExtendedProtectionFlags : {} 
ExtendedProtectionSPNList : {} 
AdminDisplayVersion : Version 8.3 (Build 83.6) 
Server : MAGEX01 
AdminDisplayName : 
ExchangeVersion : 0.1 (8.0.535.0) 
Name : Rpc (Default Web Site) 
DistinguishedName : CN=Rpc (Default Web Site),CN=HTTP,CN=Protocols,CN=MAGEX01,CN=Servers,CN=Exchange 
Administrative Group (FYDIBOHF23SPDLT),CN=Administrative 
Groups,CN=MAG,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=mag,DC=local 
Identity : MAGEX01\Rpc (Default Web Site) 
Guid : c1db7b6a-86dd-4230-8211-7bb03de97935 
ObjectCategory : mag.local/Configuration/Schema/ms-Exch-Rpc-Http-Virtual-Directory 
ObjectClass : {top, msExchVirtualDirectory, msExchRpcHttpVirtualDirectory} 
WhenChanged : 4/29/2014 8:10:27 PM 
WhenCreated : 6/29/2009 2:44:38 PM 
WhenChangedUTC : 4/30/2014 3:10:27 AM 
WhenCreatedUTC : 6/29/2009 9:44:38 PM 
OrganizationId : 
OriginatingServer : MAGDC01.mag.local 
IsValid : True 
ObjectState : Changed 

RunspaceId : ddde1733-101b-4739-93f5-80b20002ac8e 
ServerName : MAG-EX-01 
SSLOffloading : True 
ExternalHostname : mail.magcpa.com 
InternalHostname : mail.magcpa.com 
ExternalClientAuthenticationMethod : Ntlm 
InternalClientAuthenticationMethod : Ntlm 
IISAuthenticationMethods : {Basic, Ntlm, Negotiate} 
XropUrl : 
ExternalClientsRequireSsl : True 
InternalClientsRequireSsl : True 
MetabasePath : IIS://MAG-EX-01.mag.local/W3SVC/1/ROOT/Rpc 
Path : C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\rpc 
ExtendedProtectionTokenChecking : None 
ExtendedProtectionFlags : {} 
ExtendedProtectionSPNList : {} 
AdminDisplayVersion : Version 15.0 (Build 847.32) 
Server : MAG-EX-01 
AdminDisplayName : 
ExchangeVersion : 0.20 (15.0.0.0) 
Name : Rpc (Default Web Site) 
DistinguishedName : CN=Rpc (Default Web 
Site),CN=HTTP,CN=Protocols,CN=MAG-EX-01,CN=Servers,CN=Exchange Administrative 
Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=MAG,CN=Microsoft 
Exchange,CN=Services,CN=Configuration,DC=mag,DC=local 
Identity : MAG-EX-01\Rpc (Default Web Site) 
Guid : 7f77f3af-4191-49f9-bd55-878af7dddbc1 
ObjectCategory : mag.local/Configuration/Schema/ms-Exch-Rpc-Http-Virtual-Directory 
ObjectClass : {top, msExchVirtualDirectory, msExchRpcHttpVirtualDirectory} 
WhenChanged : 4/29/2014 8:13:58 PM 
WhenCreated : 4/25/2014 4:42:08 AM 
WhenChangedUTC : 4/30/2014 3:13:58 AM 
WhenCreatedUTC : 4/25/2014 11:42:08 AM 
OrganizationId : 
OriginatingServer : MAGDC01.mag.local 
IsValid : True 
ObjectState : Changed