Exchange 2007: Outgoing mail stuck in queue

Only when sending mail with an attachment, in this case only 15MB. (Users have no limits defined (limit boxes are un-checked) -- System wide limit is set at 30MB in Org Config -> Hub Transport -> Transport Properties  for both send and receive.)

Queue viewer on the 2007 Exchange Management console shows the messages sat in a queue to.......

cn-first routing group,cn=routing groups,cn=first administrative group,cn=administrative groups,cn=domain,  etc etc

with a delivery type of SmtpRelayToTiRg status retry.

User gets a 'delayed for 4 hours' message and then a final NDR when the delievery time expires.

Exchange 2007, running on Server 2008 sp1
MoonsOfJupiterAsked:
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AkhaterCommented:
SmtpRelaytoTiRg  are for  messages re queued for delivery to an Exchange Server 2003 routing group.

if this is the case you should be looking for message restriction on the 2003 side
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MoonsOfJupiterAuthor Commented:
That's what I gather from some other questions on SmtpRelayToTiRg. However, I don't have an Exchange 2003 server -- just the 2007 one.
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AkhaterCommented:
well that's weird !

did you have any old 2003 server that was decommissioned ?

try to issue a get-routinggroupconnector
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MoonsOfJupiterAuthor Commented:
Yes, I think this evironment started out as a SBS 2003 setup. But they've migrated away from that a year or two ago -- before I came on the scene.
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MoonsOfJupiterAuthor Commented:
$> get-routinggroupconnector

Name                      SourceRoutingGroup         TargetRoutingGroup        
----                      ------------------         ------------------        
Mailserver-Mainserver     Exchange Routing Group ... first routing group      
Mailserver-Mainserver     first routing group        Exchange Routing Group ...
Mainserver-Mailserver     first routing group        Exchange Routing Group ...
Mainserver-Mailserver     Exchange Routing Group ... first routing group      
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AkhaterCommented:
well it sure looks like you have routing group connectors

try a get-routinggroupconnector | remove-routinggroupconnector

just make sure you have no exchange 2003 before doing so
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MoonsOfJupiterAuthor Commented:
Yeah, I think mainserver is the old SBS server. I will make sure its really gone then.
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MoonsOfJupiterAuthor Commented:
Will try to remove the routing group connector tonight.
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MoonsOfJupiterAuthor Commented:
OK, I ran  get-routinggroupconnector | remove-routinggroupconnector. And I get nothing back from get-routinggroupconnector. So do need to restart the mailstore or anything else?

Thanks

:O:
wd
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MoonsOfJupiterAuthor Commented:
Seems to work. I'm now getting immediate bouncebacks about the file size being too big. (15MB test message)
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