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=== Test ===
First use netstat and telnet to confirm your service is listening on the correct ports/interfaces. You will probably have to open the appropriate firewall port on vm3 to allow incoming SMTP connections.
If all worked so far - you should be able to send email to any regular user on vm3 using the email address yourusername@yoursenecaid.org using Thunderbird on vm2.
If you got it - this is a good time to stop and ponder how it all worked. You've gone through setting up a lot of services. Look at the diagram at the top of the page - which services have you set up?
== Reading Email ==
Finally we'll set up the IMAP server so we can read email. The way we've set it up - all the email for anyaccount@yoursenecaid.org should end up on vm3. We will set up Dovecot (with IMAP, IMAPS in a later lab) to get easy access to that email.
The configuration file for the Dovecot service (which is not the same thing as dovecot-lda) is /etc/dovecot/dovecot.conf
Modify the '''protocols''' option so that Dovecot will work with IMAP connections, no POP3 or LMTP. That should be all you need, the rest of the defaults will work just fine for us for now.
Use netstat to confirm the service is listening, and use telnet on the host to confirm you can connect to it.
If you can -