iPad 'Cannot verify server identity' error

How do I fix this extremely annoying error message? Sending and receiving mail does not seem to be affected, but starting yesterday for no reason this message keepspopping up. I’ve rebooted to no avail.




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Posted on Oct 30, 2020 9:48 AM

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Posted on Oct 31, 2020 5:44 PM

As ridiculous as this sounds, the only real fix I have found to work is to delete the offending email account from your iPhone and the add it back. That seems to clear it.


You need your username and password to add your account, so be sure you have it before you delete it!


When you are adding the account, there will be a list of accounts, including Gmail, AOL and Outlook.


Even if your email account is an @live.com email address, instead of @outlook.com, choose Outlook.com.


After 30 minutes the message had not shown up again.


If I am correct, the account settings are changed from an imap to pop3. It doesn't matter to me HOW I get my emails, as long as I get them securely!


Good luck!



244 replies

Nov 1, 2020 9:28 AM in response to Bulletvaldez

I’ve been having the issue too, but unfortunately on two separate phones. What I just discovered was an error on my Gmail logging in when checking my mail.


Since my wife and I share one email to keep a shared calendar we were both getting the error code but it has since stopped once I updated my passwords.


I can’t say that this is the fix for everybody however it didn’t fix my issue. Hope this helps

Oct 31, 2020 11:02 AM in response to Bulletvaldez

This is happening to me also. in my case it is happening with a Microsoft e-mail account that I have active in both the Apple email app and in the Microsoft Outlook app. The certificate details show that it is an outlook.com certificate that has recently been issued, apparently because the previous annual certificate had expired. I have not made any recent changes to the mail accounts or mail settings in either app, and this had not been occurring before the certificate change. It is VERY disruptive because it shows up at random times, in the middle of other activities, and it must be clicked before the iPhone will do anything else. This is on an iPhone 11 Pro on iOS 14.0.1. Let me repeat: it is highly disruptive and distracting.

Nov 1, 2020 8:04 AM in response to Bulletvaldez

I found a simple fix for this issue on my phone. If you have the same settings as I do, it might work for you, too.

Settings—->Passwords & Accounts

—->Choose the offending (Hotmail/Outlook/Live, etc) account

—>Account (email address)—>under Outgoing Mail Server, click on SMTP. If your settings look like mine below, I clicked ‘OFF’ the Primary Server smtp-mail.outlook.com....leaving smtp.live.com ‘ON’.

I don’t know why this worked, as I didn’t change the actual offending Incoming Mail Server, but my phone fetched my mail just fine after I did this. Maybe it’s because the Incoming and Outgoing server names no longer match?

I hope this helps someone else. I really didn’t want to go through the whole ‘delete account’ process!

Nov 1, 2020 9:43 AM in response to WhoaNellie1

WhoaNellie1: That's the weird part. I don't see any of that anymore once I re-added my account (twice!). Am I no longer an imap account? UPDATE: I deleted it again and this time added it as an "other" account, without using the "Outlook.com" button Apple provided. I now see the IMAP stuff, so that's all good, but STILL the S/MIME is greyed out for both Sign and Encrypt by Default and claims "No valid certificates found." We shall see if my emails download this time.


Jan 26, 2021 5:39 AM in response to Frontyak1

Mine does the same thing! So annoying. I just read a few other posts and somebody said to turn off the notifications for your mail. So if you go into settings, Notifications and whatever Mail you have to turn the notifications off. I just did that so we shall see if it helps. I'm upgrading to a new phone today so I'm curious if the freezing of the keyboard happens on the new phone.

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iPad 'Cannot verify server identity' error

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