Eric Wong [off-list ref] writes:
quoted
Some popular E-Mail clients completely ignore the "Date" header, which
format-patch is careful to set such that the patches will be displayed
in order, and instead sort by the time the E-mail was received.
It is send-email that carefully shows monotonically increasing
timestamps so that the sender's datestamp can be used for sorting by
the recipient, not format-patch, which records author-date,
primarily meant for local replaying, in the generated messages but
discarded by send-email.
Disconnecting during the delay might be more sympathetic to
existing mail servers (which aren't C10K-optimized). If the
client sleeps, the server may disconnect the client anyways
to save resources.
But maybe --send-delay can be a shortcut for
--relogin-delay and --batch-size=1
Both good points to point at a simpler and better solution, I guess.