Give this command:

<verbatim>
    $ fossil set email-send-command
</verbatim>

If that gives a blank value instead of <tt>sendmail -t</tt>, say
If that gives a blank value instead of <tt>sendmail -ti</tt>, say

<verbatim>
    $ fossil set email-send-command "sendmail -t"
    $ fossil set email-send-command "sendmail -ti"
</verbatim>

to force the setting. That's a
[https://fossil-scm.org/forum/forumpost/840b676410 | known bug] which
should be squished soon.

This is the correct command even if you're running Postfix or Exim
rather than Sendmail. These mail servers (and perhaps others) provide a
<tt>sendmail</tt> command for this very sort of reason: it lets programs
send email without having to care exactly which server implementation is
running at a given site.

<a id="status"></a>If you reload the Email Notification Setup page, the
Status section at the top should show:

<verbatim>
    Outgoing Email: Piped to command "sendmail -t"
    Outgoing Email: Piped to command "sendmail -ti"
    Pending Alerts: 0 normal, 0 digest
    Subscribers:    0 active, 0 total
</verbatim>


<h4 id="subscribe">Subscribe to Alerts</h4>