We are currently looking in to reports that accessing the webmail is slower than normal. We will post an update when we have more news on this.
Update: 07-Apr-2018 14:50 CEST: The problem appears to be ISP specific, and not an issue on the Runbox network. A further update will follow.
Update: 07-Apr-2018 20:48 CEST: We have tracked down the problem, and this has now been resolved. The problem was not ISP specific, but was IP specific.