Sendmail

• Spam Filtering

• Linux-Sec  - Information of mail server hardening recommendations, with user’s guideattached.
• Meta 1  - Overview of message transfer agent, with documentation and project details.
• Sendmail Consortium  - Resource of open source sendmail version has downloads, documentations and news.
• Sendmail Documentation  - Displays general outline of the e-mail flow through sendmail 8.12.
• Sendmail, Inc.  - Builds powerful and secure email systems for large business and service providers who depend on email to run their business.