When we moved to the new hosting center we had pretty strict rules in our new firewall. Some people did not like that we did not allow pings to pop.runbox.com and smtp.runbox.com and by popular demand we have now turned it on again.
By popular request we’ve now doubled the weekly bandwidth quota from 2.5 GB to 5 GB for regular subscription accounts. Hopefully this helps especially the IMAP users that have been having problems, but please let us know if you’re still reaching the quota.