However, they don't appear on multiple lines, they just keep getting smaller. Opera includes support for email, chat and newsgroups. You can sign on for a free OperaMail account that uses a Web-based interface. Or POP your email directly into Opera. You can even add a signature to outgoing mail.
Opera is also unable to effectively multitask.
I tried sending a message while downloading email from Yahoo. The active window kept switching to the arriving email. And email sent didn't appear in my Yahoo Inbox or elsewhere immediately. It is free and eminently more usable. The software registered me as a fresh user.