Red Hat Sendmail HOWTO

This document is a HOWTO for sendmail on Red Hat Linux. It documents background information and many of the common problems associated with running sendmail on Red Hat Linux, and also discusses fixes and associated issues. The document assumes you are running sendmail on Red Hat Linux release 6.1 (Cartman) but should be fully compliant with Red Hat Linux 6.2 (Zoot) as well. The current sendmail version as of this release is sendmail 8.9.3 installed via RPm. One of the key features we are trying to accomplish with this document is to take all of the sting out of configuring sendmail. We will begin with some essential background and configuration information and then move on to more advanced topics.