Just started today. Haven't made changes to the system in a week or more...
Some messages TO THE SAME ACCOUNTS are deliver.
Some are deferred.
What am I missing? Can I do something to maildrop to make it more explicit? I'm using it for default delivery....
Look in your syslog. Your hard drive may be getting a bit flaky.
The error message is reported when write() fails.
If you're running something using xfilter, the error message also means that the subprocess crashed.
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