/opt/zimbra/conf does not contain a cyrus-sasl directory.
I found saslauthd.conf in /opt/zimbra/cyrus-sasl-2.1.21.ZIMBRA/etc/saslauthd.conf
it said the zimbra url was https so I changed it to match my useage which is http.
The first line was
zimbra_url:
https://bruin.southofdallas.com/service/soap which I changed to http (since I'm using http not https). I'll see how that works.