Re: sendmail.el bug or expected behavior?

[Richard Stallman]

    Ian suggested to use -oeq which hands the message to sendmail in the
    foreground (with mail-interactive set to t) so sendmail gets a chance to
    complain if it has no space in the queue or if there's no queue and no hub,
    or if there's no queue and the hub is not accessible.

When mail-interactive is t, Emacs uses -oep.  That seems right.  The
intention of mail-interactive = t is that you should get to see errors
right away, as much as possible, and this is what does that.

If people find that there is reasonable performance waiting
for sendmail to finish with -oem and -odb for mail-interactive = nil,
we could conceivably try moving further to -oeq in that case.