hi there i've just lost my connection i need to diagnose a problem with smtp auth if i'm at the mail server telnet localhost 25 ehlo test 250-STARTTLS 250-PIPELINING 250 8BITMIME (i've omitted mailserver's name :) but if i'm outside the lan (from internet) telnet localhost 25 upps telnet mail.domain.com 26 uppps telnet mail.domain.com 25 ehlo test 502 unimplemented (#5.5.1) i've got that.. an unimplemented. i've found this link, where someone has the same behaviour http://forum.sw-soft.com/showthread.php?s=2a059f7e4b8ed286ff75b0ed67c7d017&threadid=29365&goto=nextoldest at that thread the problem wasn't the qmail server.. i'm trying to diagnose if it's a misconfiguration or is something external. any ideas? to be concise: if i try ehlo from local server it works but if i try from internet it says unimplemented..