What do you see when you telnet to their gateways??
http://www.wikihow.com/Send-Email-Using-Telnet From: Scot Parsons [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 30, 2008 2:51 PM To: MS-Exchange Admin Issues Subject: Stuck in Queue I have one domain that gets stuck in my queue(outgoing). I can receive mail from them just fine. We are a state agency in SC, and so are they. I talked to their admin and sent a test message. He said it never hit their Barracuda. I rebooted the Exchange server after hours and the message went. I sent another and it got stuck in the queue again. I get the following error in the queue viewer: 451 4.4.0 Primary target IP address responded with: "421 4.2.2 Connection dropped." Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. Exchange 2007 SP1 plus all patches. Postini receives all incoming. Anyone seen this? Scot Parsons ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
