uemurad -> RE: Messages stuck in queues (23.Oct.2009 10:22:28 AM)
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quote:
I think when a message is sent a conector is created for that domain. I'm talking about SMTP connectors which you have to create and configure as part of Exchange. These tell Exchange how to route messages. Based on your answer, I'm assuming you probably only have a single connector that delivers messages to the Internet. Open the System Manager (ESM). If you don't see a folder named Routing Groups at the first level of your Organization tree, then expand Administrative Groups and the object that appears beneath (the name of your Exchange Organization). You should find Routing Groups there. Expand the folders beneath and any folder named Connectors. How many entries in total beneath all the Connectors folders are there? quote:
I've currently had to to diable NDR's as 100's of queues were in retry mode sending NDR's to various domains. NDRs are a natural occurance. When you have a lot, they are typically a by-product of Spam. Read this article for an explanation of what is happening. Strictly speaking, turning off NDRs breaks the RFC for SMTP. Not that you're breaking any laws, but you are also denying legitimate messages from getting out. For example, if one of your customers attempts to send a message to one of your users and accidentally misspells the name, wouldn't you want your customer to know? Without the NDR, the customer will assume that the message got through. What if it was something important (like a revenue opportunity)? What to do about Spam? 3rd-party spam filters are highly recommended. Also, my colleague Oz Ozugurlu put together a nice list of things you can do, some are native to Exchange (i.e. at no cost).
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