All email from external servers sent to LSL scripts is failing. data.agni.lindenlab.com either refuses connections, the TCP handshake times out, or a read timeout occurs before our server receives anything. I've verified the problem is happening from multiple internet hosts. My mail server logs since Friday afternoon show 100% failure except for brief periods of a few seconds once every 12-15 hours where a cluster of messages make it through.
Most attempts look like this in my server logs:
Jun 2 11:09:41 mail postfix/qmgr[32337]: E6B558D6C55: to=<xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx@lsl.secondlife.com>, relay=none, delay=0, status=deferred (delivery temporarily suspended: connect to data.agni.lindenlab.com[64.154.223.192]: read timeout)
Jun 2 11:20:36 mail postfix/qmgr[32337]: B6A518D5E1C: to=<xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx@lsl.secondlife.com>, relay=none, delay=0, status=deferred (delivery temporarily suspended: connect to data.agni.lindenlab.com[64.154.223.192]: Connection timed out)