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Hiding Sendmail's identity and version

  • Change the telltale welcome message:

  • define(`confSMTP_LOGIN_MSG',`$j server ready at $b')dnl
     

  • Replace (don't just delete!) the Sendmail help file (default location: /etc/mail/helpfile). I use text such as:

  • #vers   2
    smtp    I'm sorry, Dave, I'm afraid I can't do that.