Setting up an email server on an ubuntu machine

The machine has a dedicated ip and a domain name.

I need the ability to send and receive emails. I would be needing maximum 5 emails(info,contact,sales etc)

There would be maximum 5 email ids which would be created. Ultimately I want to add these email accounts to my gmail account, ie I want to send and receive emails from my gmail account. So if I am forwarding my emails to gmail, do I need an email server on my domain at all? What is the simplest thing to do.

I have tried installing dovecot but it seems ve开发者_如何学Cry complex with lot of configuration. Is there any simple email server?

Is there any simple server which just forwards all the emails to my gmail.

Roundcube web mail client is also installed. It asks for Imap username password.

I am not sure what all software I need to install to get this done in the most simple manner.

My requirements are very simple, I do not want a scalable solution, simplicity is the key.

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There is a very simple way: use postfix!

sudo apt-get install postfix

During this installation, choose "Internet site with smarthost". You will need information about your ISP's smtp server, through which you will relay outgoing mail.

Set up you email addresses forwarding in /etc/aliases, like so:

john.smith:  <your first gmail address>
foobar:      <your second gmail address>
... and so on

When you're done, run:

sudo newaliases

Any incoming mail to john.smith@yoursite.com, foobar@yoursite.com etc will be forwarding to the gmail accounts.