Increase verbosity of logging of saslauth

[Claus Assmann]

On Thu, Sep 12, 2019, Jobst Schmalenbach wrote:
> On Thu, Sep 12, 2019 at 12:04:19AM -0600, Amir Caspi (cepheid at 3phase.com) wrote:

> > If it's just sendmail you care about, then set your sendmail log level to 10 or higher.  If you use sendmail.mc (and convert via m4), then insert the following:
> > O LogLevel=10

Don't do that, use the mc macro. See cf/README.

> I would like - at the very least - see the names [[...]]

Get the latest sendmail snapshot and compile with -D_FFR_AUTH_FAIL_LOG_USER