Figure A shows the active communication with other SMTP servers as well as a list of domains to which mail may not be flowing for some reason. You're also provided with a reason that communications may be failing with a particular domain. Note also that you're shown the number of messages sitting in a particular queue. If you double-click a particular queue, the Queue Viewer will show you a list of messages waiting in that queue.
Figure B Note that there is a message in the yaho.com queue in Figure B. It's likely that this message is still sitting as the user probably intended to type yahoo.com instead of yaho.com. Select a message in the list and other message details, including the subject, show up in the Actions pane.
If you want more details about the message, click the Properties option in the Actions pane. The Properties page for a message gives you a lot of information about the message, including the sender, recipient, the message size, the last error associated with the message and much more.
Figure C If a particular message, such as the one shown in Figure C, is never going to be received because of a typo or some other error, you can forcibly remove it from the queue. From the Actions pane shown in Figure B, click the Remove (with NDR) action to let the sender know that the message failed to be delivered. If you don't want the sender to know that message delivery was interrupted, choose the Remove (without sending NDR) option instead.
Since 1994, Scott Lowe has been providing technology solutions to a variety of organizations. After spending 10 years in multiple CIO roles, Scott is now an independent consultant, blogger, author, owner of The 1610 Group, and a Senior IT Executive with CampusWorks, Inc. Scott is available for consulting, writing, and speaking engagements and can be reached at email@example.com.