When the server is down in actuality, users use to think that they have some other issue and start to fix it and mess the whole thing completely. So in case if it is rocketmail down today, then you will have to wait patiently to check whether there is a server issue first before you start fixing.
Go to the twitter page and just type hashtag rocketmail server down, if you can see a list of people complaining about the same issues, leave all your worries aside. Since there are a lot of people facing the same error that you are facing right now, you are not alone. As soon as the server gets back to normal, these errors will also disappear. Check the dates when the tweets are posted.
Rocketmail login issues may even occur when there is a server issue, so do not assume that your account got hacked or you have faced some other issue.
Use websites like downdetector to check whether the rocket mail is down or not. Not only downdetector, there are plenty of other websites that can be used effectively.
So when you face any troubleshooting in your email, you can feel free to visit emailspedia.com website. This platform is made just to fix all the issues that are related to the email.
See also - http://www.emailspedia.viamagus.com/blog/What-is-Rocketmail-and-How-to-Access-it-.html