We are experiencing issues with access to our services and are working to resolve the problem.
If you are having problems at this time you may use the webmail at https://runbox.com in the meantime.
We apologize for the inconvenience caused.
UPDATE 12:20 CET: There is an ongoing Denial of Service attack on our services which is affecting access to especially IMAP and POP. Our system administrators are working to mitigate the attack and we expect operations to normalize shortly.
UPDATE 13:45 CET: After closer inspection the issue appears caused by system modifications related to performance improvements. The problem has now been resolved and services are operating normally.