Update 1 July: The datacentre say that whilst the UPS was disconnected for planned maintenance they incurred a coincidental loss of utility mains power, and thus power to the site was lost.
We will be performing a software upgrade to our POP3 and IMAP servers on Sunday 16th June from 8AM.
The nature of this work requires that all the servers in the cluster need to be upgraded at the same time, this means there will be a period of around 15 minutes where POP3 and IMAP access to email will be unavailable.
We will update this post as the work is carried out
On Sunday 16th June between 3am - 5am we will be carrying out general core network maintenance.
We expect there to be some disruption during this time.