| SMTP training
course contents
SMTP architecture
What is SMTP, SMTP history, MUAs, MTAs, POP3, IMAP, SMTP
and DNS.
Hands on exercise: Setting up MTAs and MUAs and sending a
simple email.
The SMTP protocol
SMTP protocol stack, SMTP headers, HELO, SMTP mail, FROM,
RCPT, VEFY, DATA, EXPN, SEND, SOML, SAML, TURN, EHLO, ETRN,
DCE RPC.
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
From, to, cc, bcc, sender and recipient headers, message
Ids.
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, 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
What is IMAP, where to use IMAP, authorisation, IMAP commands.
Hands on exercise: Setting up an IMAP server and analysing
IMAP packets on a network.
Interoperation
Mail gateways, addressing, CC mail, X400, Exchange, sendmail.
Email security
Basics, PGP, SSL, digital certificates, mail relays, spamming.
Hands on exercise: Relay spamming and the blocking spamming.
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