You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

oswjim Author

Level 1

26 points

unable to add yahoo/google mail accounts

since upgrading to El Capitan I'm unable to add any yahoo or google account ...

when trying to add an account (gmail or yahoo) into mail an error message pops up stating:

Connection Insecure

Failed to verify the server certificate. This could be because of your network configuration or your proxy settings.

when trying to access the accounts via web browser all goes ok, so there’s no network/internet connection or proxy issues. In fact, I'm using no proxy whatsoever.

The error is the same if trying to add the accounts using mail or the internet accounts system preference ... I imagine is something related to OAuth since for any of these two providers that is the authentication method used to configure them

any help would be greatly appreciated

Rgds

MacBook (13-inch Aluminum Late 2008), OS X El Capitan (10.11)

Posted on Sep 30, 2015 2:48 PM

Top-ranking reply

batmandan

Level 1

16 points

Posted on Jan 18, 2017 4:50 AM

Been battling with this for quite some time. Removing all certificates didi not help, neither did removing the entire keychain.

It was AdGuard, even though it wasn't showing as a blocked page or anything - disabling AdGuard allowed me to add the account and it still works after re enabling.

View in context

73 replies

Nicksong

Level 1

9 points

May 2, 2016 9:42 AM in response to ambercolorado

Thanks a lot!

May 10, 2016 6:41 AM in response to oswjim

I have the same, I don't have keychain, but I checked it anyway and no verisign (whatever that is).

I waited before updating to el capitan as I had problems when I updated my mac book with it - i presumed any problems would have been resolved by now 😟

Z3P0D

Level 1

4 points

May 18, 2016 5:23 PM in response to oswjim

I was having that issue as well, I went ahead and checked my Keychain Access for any non verified certificates but all of them were valid.
What fixed it for me was disabling my Avast Shield, as soon as I disabled it, I was able to add the account and get rid of that pesky little reminder.

I'm up and running now!

btong5

Level 1

12 points

Jun 2, 2016 5:15 PM in response to jhcook

Hello... Can you explain how I can get to /Library/Keychains/? And what should I be deleting?

Jun 16, 2016 9:44 PM in response to ywamer

Yes, it seems AVAST is the culprit to keep many of us from being able to connect yahoo mail in Mac.

If you have AVAST:

1. Open AVAST

2. On left-hand side, scroll down to PREFERENCES and click on it.

3. Another box will open up, look to the right and you will see three choices, click to disable Web Shield.

4. Click the 'X' to close the window.

5. Open Internet Accounts and begin set up for your selected account.

Hope this helped. 🙂

Jun 20, 2016 11:57 PM in response to jamiefromsawbridgeworth

The antivirus was the issue. Thanks for the post

warnl002

Level 1

4 points

Jul 5, 2016 5:11 AM in response to oswjim

This solved my problem instantly, thanks!

Jul 26, 2016 6:15 PM in response to oswjim

Unfortunately, this did not help...

Czapel

Level 1

4 points

Jul 27, 2016 11:36 AM in response to oswjim

The issue on my side was indeed the VeriSign certificate. But In my case it wasn't showing any red marks until i went through all certificate one by one.

Here is the certificate that I've removed and it fixed the issue for me:

Jul 29, 2016 2:00 PM in response to charlie_crews

charlie_crews wrote:

OS: 10.11.1

I was experiencing the same issue as described in the first post of this thread. After investigating the issue in more detail I was able to narrow my problem down to the Avast Mail Shield. I was unable to disable the mail shield and had to completely remove the product. After removing Avast, I was able to add a Google Account to Internet Accounts.

I will be opening a support ticket with Avast regarding this issue.

Works for me too!

Aug 31, 2016 7:34 PM in response to stephenjt

I had the same issue - I over-rode the system defaults and marked the certificate as always trust, and was able to add the goose account. Was the version class 3 Public Primary Certificatio Authority G5 key that messed with me. Occurred after I changed my google password.