Just an update, a user with a mailbox on the 2010 server can send to another user with a mailbox on the 2010 server. But they cannot send to users on the Exchange 2003 servers or externally. Andy
________________________________ From: Andy Lawrence [mailto:and...@ansltd.info] Sent: 25 August 2010 12:30 To: MS-Exchange Admin Issues Subject: Exchange 2010 no longer sends email Hello All (again), I'm not having much luck with Exchange 20101! Not only does it stop responding a couple of times a week (see earlier post) but now it has decided that it doesn't want to send emails. We have Exchange 2003 and aded a fully patched Exchange 2010 server (vm) about 2 weeks ago. Since yesterday afternoon people with mailboxes on the 2010 server send emails but they never get to the recipient. This includes internal and external emails. For some of the emails they sent yesterday they got NDR along the lines of... "Delivery is delayed to these recipients or groups: Anthony Bloke (a.bl...@ourdomain.co.uk) Subject: FW: should we move to Google Apps This message hasn't been delivered yet. Delivery will continue to be attempted. The server will keep trying to deliver this message for the next 1 days, 19 hours and 57 minutes. You'll be notified if the message can't be delivered by that time." The send connector is still there with an address space of * an a cost of 1. The source server is correct. I have tried deleting the connector and recreating it. If I use the queue viewer it does not show anything waiting. The mail flow troubleshooter doesn't highlight anything either. The routing log viewer does not even show the send connector on the send conector tab. Wireshark does not show any outgoing smtp comunications from the server / connector The server was sending emails successfully and it looks like the problem started sometime after I restarted the Information store (due to the problem of the store.exe process taking up all the cpu) Since then I have rebooted the server as well to see if that helped but it doesn't. There are 2 other send connectors showing which are the ones on the Exchange 2003 server. I have renamed them to verify this. On the Exchange 2010 server they do not have a source server mentioned. Andy This message has been scanned for viruses by BlackSpider MailControl <http://www.blackspider.com/> Click here <https://www.mailcontrol.com/sr/N0y+DTdwk6PTndxI!oX7UtvqrUUui+B5H60OZOm0 qbHa2uwESmJw7!B36iBOJiBa4ET7fH0U7WMpdY6WjzZSeg==> to report this email as spam.
