I've been using my email accounts for years from my iPod Touch. It is from my WiFi network at home. A few days ago, I got "Secure connection failed. The certificate for myEmail@server.address.com may not be valid. Cancel/continue". A google search indicates that this is a rampant problem encountered by iOS users. The solution seems to be to simply select Continue. I'm not a security expert, but from what I've read up on, it's not a good idea to proceed when certificates for the host do not match. Apparently, it opens up the communication to well known attacks. Can anyone shed some light on what would cause this certificate error when things worked fine previously? And why exactly is the prevailing wisdom to proceed despite the error? The explanations I've seen are rare and very vague (something about domains and host names, but nothing convincing). I don't get such errors when accessing my email from other devices on the same home WiFi, e.g. Firefox from a Windows 7 machine.