Archive for February, 2011

How to fix iOS Mail ‘Cannot Verify Server Identity’ error with self-signed certificates

Saturday, February 26th, 2011

Since upgrading my iPhone to iOS 4.2.1 I continually received this annoying popup every time I sent or received email:

I use SSL for both sending and receiving email, and my mail server uses a self-signed certificate. It sounds like this is a common problem with iOS 4.2.1 and self-signed certificates. Some say it’s a bug, while others say it’s Apple’s intended behaviour with self-signed certs. One thing’s certain – it’s frickin’ annoying!

Anyway, after trying all sorts of things suggested in forums, including wiping my mail settings, rebooting, and so on, I finally came across the solution in this forum post. Here are the steps (slightly modified from Drarok’s post): (more…)