No definitely didn't see anything in the IPS log.

There is nothing in the Packet filter log either because when Astaro's FTP proxy service is on, the Packet Filter rules are not consulted for FTP outbound. Only when I disable the Astaro FTP proxy do I then see records in the packet filter's live log.

But all that aside, I have determined that it IS a problem with this one particular FTP site. When the FTP proxy is on, the Astaro froxy returns "421 FTP server is sending you rubbish!". When the Astaro froxy is off AND there is an FTP allow packet filter rule, connection to this particular FTP site functions fine through the Astaro.

I setup a test FTP site and I am able to connect when the Astaro froxy is enabled, so it is definitely something special about this one particular remote FTP server. I just have no idea what that special quality is and I am not disabling the Astaro froxy because of one site. The Astaro FTP proxy just seems to not be able to function properly with this remote FTP server.

lol, any ideas?