Comment 9 for bug 438116

The email delivery is explicitly set to *not* be deferred. In out production configs, there is a mail-configure-normal.zcml file with this content:

    <!--
    <mail:queuedDelivery
        permission="zope.SendMail" mailer="smtp"
        queuePath="/srv/launchpad.net/mail_queue/production1"
        />
    -->

    <mail:directDelivery permission="zope.SendMail" mailer="smtp" />

That change is from 2007 ("Stuart Bishop <email address hidden>: Switch to direct delivery until queued email delivery queue directory issues are sorted").

The "queued email delivery queue directory issues" are not clear to me yet. I could not find a related bug for Launchpad or zope.sendmail. I'll see if Stuart can provide me with some background.

I'm also inclined to make a separate bug about exploring queued email delivery for Foundations, and reassigning this end-user bug to Malone, but I won't do it without someone agreeing that it it makes sense.