[radsecproxy] regular expressions

Hi, I'm using radsecproxy to pass RADIUS auths from our ORPS machine to the upstream national radius proxy service . Looking at the log file I'm seeing access-rejects being sent down generating log entries of the form Oct 4 15:47:09 2017: Access-Reject for user 0234105273270593(a)wlan.mnc010.mcc234.3gppnetwork.org stationid 2C-0E-3D-05-37-86 from roaming0.ja.net (Request Denied) to fromFR (127.0.0.1) What I'd like to do is reject these locally in radsecproxy.conf. I thought that realm /.*\\.3gppnetwork\\.org$/ { replymessage "Misconfigured client: Rejected by eduroam1.york.ac.uk !" } would stop these from being passed onwards. As the log entry above shows, it doesn't ! The statement is at the top of my realm statement lists with realm * { server roaming0.ja.net server roaming1.ja.net } at the bottom. What's wrong with my realm statement? Rgds Alex