Please refer to your software's help section.
Once you launch you email client, go to your settings/account preferences page. Create a new account. These are the settings you will most likely need:

Step by Step Connection Help
  • Name/Display Name: The name you would like to be displayed
    (i.e. John Doe or ACME Sales)

  • email address: Alias-you-chose@your-domain-name.com
    (i.e. john@thedoes.com or sales@acme.com)

  • Incoming email server type: POP (not IMAP)

  • Incoming mail (POP) server: pop.your-domain-name.com
    (i.e. pop.thedoes.com or pop.acme.com)

  • Outgoing mail (SMTP) server: smtp.your-domain-name.com
    (i.e. smtp.thedoes.com or smtp.acme.com)

  • Account/user ID/name: Your full email address: alias-you-chose@your-domain-name.com
    (i.e. john@thedoes.com or sales@acme.com)

  • Account/user Password: password-you-chose (case sensitive. This is optional, if you don't want to have to type in this password everytime you send or receive mail)

  • Account Name: Enter what you would like to identify this account
    (i.e. thedoes.com POP mail or acme.com POP mail)

  • Outgoing (SMTP) server authentication required. Same settings as for incoming (POP) server.