Mail App Issue - Won't connect to server.

Question

Level 1

9 points

Mail App Issue - Won't connect to server.

Hi there,

I recently updated to Mac OS Sierra version 10.12 and ever since then my Yahoo account will not log in with the Mail App on the MacBook Pro. I have no server to update or see where the issue is as it just says Yahoo (Offline) but I have continually tried manually adding the outgoing server settings but as the photos below show, there is nowhere for me to update the incoming server settings. I have tried deleting saved passwords in KeyChain, I have restarted the macbook many times using Force Quit too, and on Yahoo there is no place which helps with my current issue. I even contacted Apple Support and they just sent me to this page; Mail settings you might need from your email provider - Apple Support.

I understand I need to manually edit the server as it is not connecting but where on the Mac can I apply these changes. Further info is that my Yahoo mail account works on my iphone and on the yahoo website. But I am using a btinernet.com address, so is that why it might not be connecting? If anyone can help, I would be most grateful!

Thanks!

MacBook Pro with Retina display, macOS Sierra (10.12)

Posted on Oct 8, 2016 3:11 PM

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Answer 1

trevoz

Level 4

1,990 points

Oct 8, 2016 11:03 PM in response to Chrsply779

I'd check with BT support - there was another user here with exactly the same problem with a Yahoo/BT Internet mail account.

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Answer 2

Chrsply779 Author

Level 1

9 points

Oct 9, 2016 5:04 AM in response to trevoz

Oh, I see, do you think you could send me a link to this other post?

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Answer 3

trevoz

Level 4

1,990 points

Oct 9, 2016 2:51 PM in response to Chrsply779

Re: Sierra - Yahoo mail persistently off-line

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Answer 4

zippytwo

Level 1

9 points

Oct 10, 2016 1:00 PM in response to Chrsply779

I have this exact same problem, having 'upgraded' to Sierra today. HELP!!!

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Answer 5

Dec 20, 2016 5:30 PM in response to Chrsply779

I have the same issue. I don't think it is anything to do with BT because I live in Singapore. Oddly, it is intermittent. If I enter my password, it says it can't verify. I am asked to supply my password several times a day. Then, despite being told that it can't verify, it goes ahead and lets me in after a while. I have to right click on the yahoo account in the mail app and take the account on-line and it comes back.

Very annoying and only since I upgraded to Sierra. Any ideas?

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Answer 6

ln045

Level 1

24 points

Dec 21, 2016 8:05 PM in response to Chrsply779

Had this problem. Found it was keychain. Wouldn't work even deleting entries in keychain app.

Had to delete the folder "keychains" found in Macintosh HD - Library. (you can rename the folder to return it later if fix doesn't work). Restart your computer, it will recreate the keychain folder.

Cons - You will need to reenter all of your passwords for all accounts and apps that require sign in (they will pop up and ask)

Pros - It fix the problem (for me)

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