How do you do it?... > Just connect to port 25 and observe the banner. Not 100% > foolproof, but most of them either identify themselves > (Sendmail) or have a recognizable banner (Postfix, Qmail, > Exchange).
Thank you Mike Jackson !
How do you do it?... > Just connect to port 25 and observe the banner. Not 100% > foolproof, but most of them either identify themselves > (Sendmail) or have a recognizable banner (Postfix, Qmail, > Exchange).
Thank you Mike Jackson !