This setting is not intended for use in the configuration file. Instead, it should be used
when queues are unusually deep, as a fast way to process the queue. Like the filename
keyword, this mode avoids the cost of opening and reading every qf file. Unlike filename,
however, parallel queue runners will have different lists to process. This avoids lock and
other contentions that could somewhat slow a queue run.
24.9.92.6 QueueSortOrder=modtime (V8.12 and later)
Beginning withV8.12, sendmail recognizes the modtime keyword, which causes it to sort
based on the modification time of each qf file. The list is ordered in reverse, so the oldest qf
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24.9 Alphabetized Options | 1075
files are processed first. Although you can set modtime in the configuration file, it has the
potential to unacceptably delay important new mail. In general, this setting is better used
as part of a command-line invocation of sendmail.
24.9.92.7 QueueSortOrder=none (V8.13 and later)
Beginning withV8.13, sendmail recognizes the none keyword, which causes it to not sort
the list at all. That is, it will process the queued envelopes in the order they were originally
put into the queue directory. This can be among the fastest ways to drain a full queue.
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