K line
The time last processed from the queue V8.7 and later
The MinQueueAge
option (MinQueueAge on page 1057)
sets the length of time a queued message must remain
queued before delivery can again be tried. Each time
sendmail processes a qf file, it subtracts
the time stored in the K line from the current time and
compares the result to the MinQueueAge. If sufficient time has not
passed, the rest of the processing is skipped. (Note
that this test is performed only if the qf file has been
processed at least once; see the N line in N line on page 452.)
The time stored in the K line looks like this:
K703531020
This number represents the date and time in seconds
since January 1, 1970. Every time the qf file is processed
(delivery is attempted), the K line is updated with
the current time.
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