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Total SMTP and email for engineers

A 3 day
HANDS ON
training course

SMTP training course description

A hands on course focusing on the workings of email systems and the standard protocols that they use. The course is not specific to any particular implementation, but some vendor specifics are noted. Linux and Microsoft machines are used in hands on sessions to reinforce the theory of major sessions. The course concentrates on troubleshooting and interworking using network sniffing and protocol inspection rather than "which buttons to push".

Key outcomes from this course

By the end of the course delegates will be able to:
  • Describe and explain
    • SMTP
    • MIME
    • POP3
    • IMAP
    • PGP, GPG, S/MIME
    • SPF, DKIM, DMARC
  • Configure mail routing
  • Secure email systems

SMTP training course details

Who will benefit:
Technical staff responsible for email systems.
Prerequisites:
TCP/IP Foundation.
Duration:
3 days

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.

Overall ratings for this course:

Course review


"Hard concepts were explained very simply."
J. S., Framestore CFC
"Excellent presentation - very good course structure."
B. M., London Internet Exchange

SMTP training course contents


SMTP architecture
What is SMTP, email before SMTP, SMTP history, the different protocols, clients, servers. Email composition, transmission, delivering emails, storing and reading emails. MUAs, MTAs, POP3, IMAP, SMTP, DNS, webmail.
Hands on exercise: Setting up MTAs and MUAs and sending a simple email using telnet.

The SMTP protocol
SMTP protocol stack, SMTP headers, HELO, SMTP mail, MAIL FROM, RCPT TO, DATA, SMTPUTF8, 8BITMIME, TURN, EHLO, ETRN, 3 digit replies.
Hands on exercise: Analysing SMTP packets on a network

DNS and SMTP
SMTP forwarding, SMTP relays, interoperation, how SMTP uses DNS, MX records.
Hands on exercise: Setting up mail relays.

SMTP headers
IMF data, From, to, cc, bcc, sender and recipient headers, message Ids, received trails, in-reply-to, received-SPF, mail list headers.
Hands on exercise: Using clients to analyse details from mail headers, including true originators and path of emails.

MIME
Email attachments, MIME versions, content type headers, encoding, base 64, binary data, multi part headers, troubleshooting attachments.
Hands on exercise: Analysing MIME headers on a network.

POP3
What is POP3, where to use POP3, authorisation, transactions, POP3 commands
Hands on exercise: Setting up a POP3 server, analysing POP3 packets on a network.

IMAP and IMAPS
What is IMAP, where to use IMAP, authorisation, mailbox structure, IMAP commands: LOGIN, AUTHENTICATE, LIST, CREATE, Examine (message flags), SELECT, STORE.
Hands on exercise: Setting up an IMAP server and analysing IMAP packets on a network.

Interoperation
Mail gateways, addressing, Exchange, sendmail

Email security
Basics, Transport level: STARTTLS. Content: PGP/GPG, mail signing and encryption, S/MIME, digital certificates, secure email submission.
Hands on exercise: Setting up and using a PGP key, configure MTAs to use TLS.

Email authentication and spam prevention
Mail relays, grey listing, block list & RBL, DNSBL (Real-time Black hole List), White list, SPF, Domain Keys Identified Mail (DKIM), Author Domain Signing Practices (ADSP), Abuse Report Format (ARF), Domain-based Message Authentication, Reporting and Conformance (DMARC).
Hands on exercise: Relay spamming and the blocking spamming.

Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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