Sendmail

How to build, implement, configure, manage and secure Sendmail

• 4 days • £2860/$3640 • world-wide

You will learn:

How Sendmail works
To create sendmail.cf files from scratch
To debug Sendmail configurations
How to use m4 macros for configuring Sendmail
To tailor Sendmail for your E-mail requirements
The security features of Sendmail and how to use them
Different methods of controlling relaying via Sendmail
To set up a Sendmail network

Course Benefits

This course gives the delegate a detailed understanding of e-mail systems and Sendmail.

Delegates will learn how to obtain, build, install configure, debug and manage Sendmail. They will also gain experience with advanced techniques, such as, relaying, masquerading, SMTP AUTH and TLS.

After completing the course delegates will be able to implement and manage complex Sendmail configurations. They will know how to configure Sendmail by hand or using the m4 Macros.

Who should attend?

This course is ideal network support staff. Delegates should already have an appreciation of UNIX/Linux and E-mail. Even current administrators of Sendmail systems can benefit from this course's comprehensive and detailed coverage of Sendmail.

Course Details

£2860/$3640
4 days
PDF

Formats

Virtual Classroom
Public Course
On-site Course
Modular Course
Bespoke Course

Platforms

Unix
FreeBSD
AIX
HP-UX
Solaris
Linux (RHEL)
Linux (Centos)
Linux (Suse)
Linux (Ubuntu)
Linux (Debian)
Linux (Fedora)
Linux (all distributions)

Email Basics

What is Email?
Structure of Email messages
Email headers
SMTP, IMAP and POP
E-mail Systems
User Agents (UA)
Message Transfer Agents (MTA)
Relay Agents (RA)
Delivery Agents (DA)

Overview of Sendmail

The roles of Sendmail
Sendmail files and directories
The Sendmail commands
Sendmail standards
Sendmail as a User Agent

An Overview of Configuring Sendmail

Different approaches
Understanding sendmail.cf
Options, Macros & Classes
Header Formats
Mailers
Rules & Rulesets
LHS & RHS operators
Overview of standard Rulesets
Aliases
Testing and debugging

Special Sendmail Rulesets

Purpose of ruleset 0
standard Mailers
The error mailer
[IPC] mailers
local mailer
The purpose of ruleset 3
Legal & canonical addresses
MAILER-DAEMON
Testing ruleset 3
The purpose of 1 & S=
Defining and using these rulesets
Aside on Ruleset 4
Purpose of ruleset 5

The check_* Rulesets

Purpose of check_* rulesets
Using check_* rulesets
Other ruleset hooks

Using m4 Sendmail Macros

Configuring sendmail.mc
Understanding m4
A basic sendmail.mc
Layout of sendmail.mc
VERSIONID & OSTYPE
MAILERS & FEATURES
Adding to rulesets
Adding to configuration

Compiling and Installing Sendmail

Obtaining & installing the source
Creating a site_config file
The Build command
Creating an initial sendmail.cf
Installing Sendmail
Security issues

Sendmail FEATURES

An overview m4 FEATUREs
Key files and their purpose
The access file
Relaying & Anti-spam
Masquerading

Sendmail SMTP AUTH

The need for authentication
SASL
SMTP AUTH
Building Sendmail with SASL
Configuring SMTP SASL
Different configurations

Using TLS with Sendmail

The need for security
Secure Sockets Layer
Transport Layer Security
Cryptography principles
X.509 Infrastructure
Sendmail and TLS
STARTTLS

During the course there will be practicals for each module. Delegates will have the opportunity to configure Sendmail from scratch using the techniques described in this course. Each delegate will have their own Sendmail server to work on during the course.

All our trainers are practising Sendmail consultants with extensive experience. They are ideally suited to bringing you the highest quality of training.

Locations

Our courses are available world-wide in our virtual classrooms accompanied by virtual labs. We also deliver on-site training and public training at venues around the world.

Please contact us if you are looking for training in your area.

Aberdeen, Scotland, UK
Basingstoke, England, UK
Edinburgh, Scotland, UK
Glasgow, Scotland, UK
Inverness, Scotland, UK
Leeds, England, UK
London, England, UK
Manchester, England, UK
Sheffield, England, UK
Europe - various locations
Ljubljana, Slovenia
Malaysia - various locations
Boston, USA
San Francisco, USA
New York, USA
Washington DC, USA
USA - various locations