My iPhone “Cannot Verify Server Identity”! Here’s The Real Fix.

You want to send an email to your friend, but you’re receiving a strange notification. The pop-up says that the Mail app cannot verify the identity of the mail server you’re trying to connect to. In this article, I’ll explain why your iPhone “cannot verify server identity” and show you how to fix this problem for good!

What To Do When Your iPhone “Cannot Verify Server Identity”

  1. Restart Your iPhone

    If you receive an alert saying that your iPhone “cannot verify server identity”, the first thing to do is restart your iPhone. This simple step can occasionally fix a minor software glitch that could be causing this error.

    To restart your iPhone, press and hold the power button until you see slide to power off appear near the top of your iPhone’s display. Use a finger to swipe the red power icon from left to right to turn off your iPhone.

    Wait around a minute, then press and hold the power button again to turn it back on. You can release the button once the Apple logo appears at the center of the display on your iPhone.

  2. Close The Mail App, Then Reopen It

    When the mail app isn’t working properly, try closing out of the app and reopening it. This can occasionally resolve minor problems if the app’s software crashed while you were using it.

    To close out of the Mail app, double-click the Home button, which will open up the App Switcher. Use a finger to swipe up on the Mail app until it no longer appears in the App Switcher.

    close out of mail app

  3. Delete Your Email Account, Then Add The Email Account Again

    Deleting and reentering your email account information resets your email’s server identity certificates, which allow your email account to be verified by the Mail app.  Don’t worry — deleting an email account on your iPhone will not delete your actual email account.

    To delete an email account on your iPhone, open the Settings app and tap Accounts & Passwords. Then, under Accounts, look for the email account you want to delete and tap it. Finally, tap the red Delete Account button at the bottom of the screen, then tap Delete Account again when the confirmation alert appears on your iPhone’s display.

    delete mail account on iphone

    Next, reenter the account information by opening the Settings app and tapping Accounts & Passwords -> Add Account. Then, select your mail service and enter the information.

    set up your email account again

  4. Reset All Settings

    When you reset all settings, all of the data from the Settings app on your iPhone will be erased. Software issues can be difficult to track down, so we’ll reset all settings to make sure we erase the problem.

    To reset all settings, open up the Settings app, then tap General -> Reset -> Reset All Settings. If you have a passcode or a Restrictions passcode, you’ll be prompted to enter them. Once you do, tap Reset All Settings when the confirmation alert appears at the bottom of your iPhone’s display.

    reset all settings on iPhone in settings app

Need More Help?

We recently recorded a video showing you how to fix the problem when your iPhone cannot verify server identity. We hope you’ll check it out and subscribe to our channel while you’re there!

You’ve Got Mail!

The Mail app on your iPhone is working again and you can start sending and receiving all of your important emails. Next time your iPhone “cannot verify server identity”, you’ll know exactly what to do! Don’t forget to share this article on social media, and feel free to leave us a comment down below if you have any other questions!

Thanks for reading,
David L.

About Author

I'm here to help you with your iPhone!

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Anonymous

Thank you! It worked perfectly.

Anonymous
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Anonymous

followed the above steps but only got a msg ‘these settings are installed by the profile “name”, no idea what to do next. appreciate the help

Anonymous
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Anonymous

wow thank you

Anonymous
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Anonymous

Simply going into the account settings and turning SSL off fixed the problem for me. I will add that the account was working with SSL until a recent iOS update 😛
Settings/Passwords & Accounts/(Mail Account)/Advanced/Use SSL/off

Anonymous
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Anonymous

I can’t believe Apple hasn’t fixed this, yet. It’s been a problem for years.

Anonymous
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Anonymous

Resetting! Thats the last thing I want to do. Step 1,2,3 do not fix the problem

Anonymous
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Anonymous

P.S. As someone else suggested, I would advise people to record or take a screenshot of their account settings before deleting the account because this information can be hard to find.

Anonymous
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Anonymous

Thank you! It worked just beautifully. Fortunately I didn’t have to do the last step and reset all of the phone’s settings to see the problem resolved.

Anonymous
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Anonymous

Tried the “Reset All Settings” step and that worked perfectly and fixed everything! Thank you!!

Anonymous
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Anonymous

please i followed your steps exactly but after reseting and going back to add new account, it doesnt work out. i click on google and it goes back again. please help me out.

Anonymous
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Anonymous

You forgot to tell us to take a screen-shot of the existing account before deleting it – now I have to figure out the SMTP settings from first principles.

Anonymous
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Anonymous

Got it! And its working again! First try options 1 & 2. If that doesnt work… do not delete your email or reset all your settings… cause that simply sucks. Go into your email account settings and turn on SSL in both your incoming and outgoing mail protocols. Go to Settings, and select Accounts & Passwords. Select your email account, and then scroll down to your OUTGOING MAIL SERVER and click on SMTP. On the next screen, click on the server identified directly below where it says PRIMARY SERVER. A bunch of settings will appear. Turn on the button that… Read more »

Anonymous
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Anonymous

Not getting any from my gmail address now on phone. Mail is coming through on my iPad.

Anonymous
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Anonymous

Thank you. I followed your steps exactly. I still get the same message. When I click on details, this pops up:

Any other suggestions you have would be great! Thank you!

Anonymous
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Anonymous

Food advice – worked perfectly. Thanks