Hi All
been able to work through this, but doco is a bit scant, search bugzilla to find it
there is a new setting: RelayRequiresAuth under qpsmtpd
Makes all clients require authentication -- internal + external -- roughly
Just thought I mention it here ...
disabling allows relay from the internal network
config setprop qpsmtpd RelayRequiresAuth disabled
signal-event email-update