Thought I'd do a quick post after I upgraded to iOS 13 this afternoon and was bombarded with "Cannot verify server identity" error msgs for all of my e-mail accounts residing on our corporate e-mail server (Yahoo and GMail did not have this issue).
What I found was that there was no way to correct these errors without removing all of my various e-mail accounts and then creating them one by one again from scratch. Once I did that, all of the error msgs went away and everything works.
Total PITA and while I understand 13.1 resolves a lot of the bugs of 13.0, Apple should never have released 13.0 with these sorts of bugs. I found a quite a few more bugs playing around today on my iPhone XR but hopefully those will be resolved and they aren't deal breakers like the bombardment of the error msgs.
Hope this helps!
What I found was that there was no way to correct these errors without removing all of my various e-mail accounts and then creating them one by one again from scratch. Once I did that, all of the error msgs went away and everything works.
Total PITA and while I understand 13.1 resolves a lot of the bugs of 13.0, Apple should never have released 13.0 with these sorts of bugs. I found a quite a few more bugs playing around today on my iPhone XR but hopefully those will be resolved and they aren't deal breakers like the bombardment of the error msgs.
Hope this helps!