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how_to:lan_forward_warning_-_452_4.3.1_insufficient_system_resources [2018/11/14 10:45] (current)
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|+||======LAN Forward Warning: 452 (4.3.1 Insufficient system resources)======|
|+||If you get this message in VPOP3 it means that VPOP3 is trying to forward a message on to another mail server (probably Microsoft Exchange Server), and that other server is rejecting the message with the error **452 4.3.1 Insufficient system resources**|
|+||You will need to fix the problem on the Exchange Server, it may be due to lack of disk space.|
|+||One of our users reported that they ran CLEANMGR on one of the partitions of the Exchange Server and freed up some disk space to resolve the problem.|
|+||If this doesn't help, you may need to contact Microsoft's technical support for help with Exchange Server.|