We will be taking one of our customer facing mail servers down for a rebuild on Monday the 1st of May. We will be moving its IP addresses over to an alternative server to keep disruption to a minimum. Once we are happy with the rebuilt server we will put it back into service. This may be the next morning, depending on how long it takes to test the rebuilt server. Although disruption should be minimal, please consider IMAP and POP3 services "at risk" during this time.
This work has now been completed and the rebuilt mail server is back in service.