Sendmail Logging By admin on July 29, 2004 in Sendmail To activate detailed SMTP transaction logging in sendmail add the following command line option: -X <i>file</i> 1 -X <i>file</i> Related posts: Upgrade RedHat 9 to Sendmail 8.12.11 Upgrade RedHat Enterprise 2.1 AS to Sendmail 8.12.11 Sendmail Install Relay Control Sendmail On Mandrake Linux release 8.2 (Bluebird) for i586