My tech guy is out until 6 hours from now and I need to verify I have smtp
set up and add an email account.

I know mailing out works but I don't know if email in works and if so, what
is it's name for DNS zone purposes.

Can you help me:
- verify I have smtp up and running and what it is called so I can add it to
my DNS record
- add an email account
- add an email account that aliases to another email

Many thanks!