> > How does an SMTP client recognize an ASA box before it breaks email? > > Only from the /^[02 *]+$/ banner. > # telnet mx.interfree.it 25 > 220 ******************************************************************
I think the newer versions of ASA can be configured to let ESMTP pass through without censoring the greeting, while still exhibiting one of the header parsing bugs - which can lead to dropping the TCP session without a RST (but with a message in the log ... which noone reads). Mark