My messges are not sent from Exch 2003 to Exch 2007 in the same network

I have two Exchange Servers (2003 & 2007) located in diferrent lans but
connected by a vpn tunnel.

Problem: users having mailbox on Ex2003 can not send mesages to users having
mailbox on Ex2007. From Ex2007 to Ex2003 is working.

I attached the errors I got from the Ex2003 log.

The routing connector 2003 to 2007 on Ex2003 is not editable.

Thank you.
errors:
 
Event Type:	Error
Event Source:	MSExchangeTransport
Event Category:	SMTP Protocol 
Event ID:	7010
Date:		4/2/2009
Time:		2:34:09 PM
User:		N/A
Computer:	EXCHANGE
Description:
This is an SMTP protocol log for virtual server ID 1, connection #138. The client at "10.10.9.1" sent a "xexch50" command, and the SMTP server responded with "504 Need to authenticate first  ". The full command sent was "xexch50 72 2".  This will probably cause the connection to fail. 
 
*****************************
 
Event Type:	Warning
Event Source:	MSExchangeTransport
Event Category:	Routing Engine/Service 
Event ID:	955
Date:		4/2/2009
Time:		2:38:00 PM
User:		N/A
Computer:	EXCHANGE
Description:
SMTP GetNextHop returned hr=0xc0040388 in 0ms.
 DestAddr=<EXCH2007.radiut.us.lcl>
 DestType=<SMTP>
 MsgType=0x0
 
 
******************************
 
Event Type:	Error
Event Source:	MSExchangeTransport
Event Category:	Routing Engine/Service 
Event ID:	929
Date:		4/2/2009
Time:		2:17:54 PM
User:		N/A
Computer:	EXCHANGE
Description:
Failed in reading Connector's DS Info Process Id: 1632 Process location: "C:\Program Files\Exchsrvr\bin\emsmta.exe" ConnectorDN: CN=EXCH2007,CN=Connections,CN=Exchange Routing Group (HGGBGZMFD01QNJUHY),CN=Routing Groups,CN=Exchange Administrative Group (GBHIBOHF23SKJJG),CN=Administrative Groups,CN=Radiut,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=radiut,DC=lcl Hr:c004038a Attribute:[homeMTA]
 
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cica23Asked:
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cica23Connect With a Mentor Author Commented:
I removed the old routinggroupconnector but when I'm trying to create a new one is saying that "either Source Server or Target Server must be Exchange 2007 servers or later.

And I know that I have a 2007 Exchange server :)
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Stephen CroftTechnical ArchitectCommented:
It looks like it is trying to send across, but failing as it is required to authenticate.

Create a new E 2k7 recieve conenctor and relax the settings, but restrict which IP's it will listen to so that it only "talks" to your E 2k3 box.

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cica23Author Commented:
I will do that for sure.

Still, you think that will solve also the problem of messages not being sent from 2007 to 2003 too?
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Stephen CroftTechnical ArchitectCommented:
Not sure, you got any logging from that direction?
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cica23Author Commented:
the messages in 2007 are being queued with "unreachable recipient" although all the users in the whole networks are in the same forest.

These errors are on the transport machine for Ex2007
Event Type:	Error
Event Source:	MSExchangeTransport
Event Category:	Pickup 
Event ID:	9010
Date:		4/3/2009
Time:		6:02:50 PM
User:		N/A
Computer:	TRANSPORT2007
Description:
At lease one file in C:\Program Files\Microsoft\Exchange Server\TransportRoles\Replay cannot be processed. These files have .bad extensions. Please look for .bad files, and make sure that the content is valid.
 
For more information, see Help and Support Center at 
 
************************************
 
Event Type:	Error
Event Source:	MSExchangeTransport
Event Category:	Routing 
Event ID:	5015
Date:		4/2/2009
Time:		11:19:40 PM
User:		N/A
Computer:	TRANSPORT2007
Description:
Microsoft Exchange cannot find a route to the source transport server or home MTA server CN=EXCHANGE2003,CN=Servers,CN=First Administrative Group,CN=Administrative Groups,CN=Radiut,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=radiut,DC=lcl for connector CN=SMTP_OUT,CN=Connections,CN=First Routing Group,CN=Routing Groups,CN=First Administrative Group,CN=Administrative Groups,CN=Radiut,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=Radiut,DC=lcl in routing tables with timestamp 4/2/2009 8:19:38 PM. Microsoft Exchange is ignoring the source transport server.

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cica23Author Commented:
And another question: how do I safely delete the actual connector. I do not want do it from the adsiedit for obviously reason :)
An many thanks for support.
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