Today I've found this warning in my maillog: Feb 4 20:13:41 facil3 smtpserver[13274]: unknown SMTP command 'AUTH LOGIN Y249bWFpbC10aG9yLndvcmxkZGF0Y S5jb20sIGNuPXRob3Iud29ybGRkYXRhLmNvbSwgb3U9TmV0c2NhcGUgU2VydmVycw==' from thor.worlddata.com/2053 What this mean? /alfredo