Apple's MobileMe service, which is due for a visit to the knacker's yard this autumn, seems to have gone on strike.
Apple insists that less than one per cent of its paying subscribers are unable to access MobileMe Mail services, but it looks like we're one of the unfortunates.
Apple has warned that there will be a short outage for scheduled maintenence at 6am tommorrow and we can only assume this unexpected glitch is related in some way.
The company says that normal service will be restored ASAP and apologises for any inconvenience.
The break in service affects both the IMAP and web-based versions.
Keep an eye on Apple's system status page for further updates.
If you're experiencing similar problems please let us know in the comments below.