Several institutions reported to us that messages to their Exchange Online tenancies were being blocked following routine maintenance to the central email switch (PPSW) on Monday 20 January. We believe we've discovered the cause and implemented a workaround that has cleared the backlog and will prevent this from happening again.

We're planning to update the University phone system on Saturday 1 February. Desk phones may reboot several times during this process, but there should be no effect on calls.

Windows 7 reaches end of life on 14 January, after which Microsoft will no longer supply security updates and bug fixes for the operating system.

The webmail interface for Hermes (https://webmail.hermes.cam.ac.uk) will be unavailable for a short time between 07:15 and 07:45 on Wednesday 8 January 2020 while we upgrade the underlying software to a newer version.

VPN users may need to configure and update to use the new VPN certificate.