MacOS – Mail App in Mac (unable to Verify Account & Password after upgrade to OS Sierra

macosmail.app

I hope you can help me. I just upgraded to MacOS Sierra. I get the "Unable to verify account name or password." I'm pretty sure I have the correct password. I read that deleting and adding back the account seems to work BUT i already have a lot of messages in my inbox that I don't want to risk deleting. Thanks in advance for your help!

Best Answer

I had this - I found that if you put your password into the little dialogues that Mail pops up, it always fails. If you instead go into Mail settings and enter the password in the server settings tab for the account and save, it works.

Incidentally I have yet to see a config that works correctly with "Automatically manage connection settings" enabled.

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MacOS – Unable to modify administrative settings after El Capitan upgrade

If you are using Centrify, then this thread led me to this Apple forums answer: let the system rebuild the authentication database:

sudo mv /var/db/auth.db /var/db/auth.db.old

and restart. This fixed all the related privilege escalation failures for me and I seem to recall a Centrify upgrade was supposed to be done before the Mavericks upgrade too.

It has not, however, re-enabled network user logon. The check-box to allow network user logon is missing from Users & Groups still.

MacOS – Unable to verify account name or password despite using correct details

I was having this issue also, tried restarting the computer, editing the SMTP, nothing worked. I went into internet accounts and clicked the remove button (-) in the bottom left. After removing and re-adding the account everything seems to be working fine!

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MacOS – Unable to modify administrative settings after El Capitan upgrade

MacOS – Unable to verify account name or password despite using correct details

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