GMail’s web interface has down for some time this morning (no idea for how long). The IMAP interface was OK and I would assume the POP was too. Maybe I should get our sales guys to call them about running in our Tier IV data centre 😉
Seriously, if you want a mail service with an SLA then have a look at Microsoft’s soon-to-be_available-in-Europe Business Productivity Online Suite (BPOS) or talk to a Microsoft hosting partner about dedicated hosted Exchange servers. This will allow you to take advantage of the SaaS use what you need & pay for what you use model.