Instructor Led Postfix Smtp Training Classes
From Guru Labs
Enterprise Linux Security Administration: Guru Labs GL550


Focuses on using the latest advances in Linux security to secure both the base OS, and a collection of the most popular applications. Advanced security technologies such as Kerberos and SELinux are covered.
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From Boston University Corporate Education Center
Linux Networking Services
...TLS Security
Lab 18 - Configure Postfix
Install the Postfix SMTP server on the system and configure it to serve domains Configure Postfix to accept network connections Configure virtual hosts on Postfix Configure Postfix to use SMTP AUTH for secure relaying Configure Postfix to support STARTTLS and to secure SMTP AUTH
Section 19 IMAP, POP, Spam Filtering and Web Mail
Filtering
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