We did a 5.06 upgrade on an Multi-Server (RHEL) over the weekend and ran into an interesting issue. Everything worked fine except for smtp authentication.
Looking at: /opt/zimbra/cyrus-sasl/etc/saslauthd.conf we saw that the zimbra_url was pointing to: https://mta:7071/service/soap https://mta2:7071/service/soap
We checked our zimbraMtaAuth and that was properly set in LDAP.
To get it working again, we just did a quick edit of /opt/zimbra/cyrus-sasl/etc/saslauthd.conf.in and put one of our mailstores in the zimbra_url and restarted zmsaslauthdctl
But any idea what would have happened? Or why it wasn't listneing to the the zimbraMtaAuth url?