RoundCube offers you the ability to send Plain Text or HTML emails, have an unlimited number of users and emails, multilingual support, email contacts, spell checks and more.

Use RoundCube if you want to impress your Clients with a fancy webmail, or want the ease of its intuitive interface and awesome set of features.

RoundCube almost makes it worth it to just use its webmail as opposed to Outlook or Thunderbird. Whether you’ll agree with that assesment is your call.